Currently, we support the versions iOS 13.5 onwards and Android 6.0 onwards.

Yes, however, you are not able to start a new test if you have less than 30% battery.

In the app, tap on “Register Bloom test”, open your test package, and hold your phone near the upper flap of the test package.

Tap on “Register manually” and enter the Bloom Test package serial number (12 characters), which can be found on the back of the Bloom Test package (see image below).

No. Take your time to read the questions and answers carefully. Your report will be created once you’ve finished answering all questions and the Bloom Lab has finished the measurement.

It will not have an impact on your results. You can generate your report later in the “Reports” tab. Your pending report will appear there and you can generate it again at a later point.

Yes, you cannot proceed without updating the Bloom Lab. This is to make sure you have the latest firmware installed.

You can receive or reject the call and proceed with the test.

Yes, but everyone should create their own account, because the reports are personalized and incorporate data such as your age, gender, etc.

We do not store your password and are therefore unable to reset it. Unfortunately, this means that if you forget your password you will no longer be able to access your account.

You can reach out to our support team via the Bloom App: Settings > Got feedback? or Settings > Report a problem.

You can change your preferred unit system via the Bloom App: Settings > Account Settings > Unit System.

You can change your Bloom App language via Settings > Account Settings > Language.

You can find the current version of the Bloom App in the Bloom App Settings.

You can export your report data via the Bloom App: Settings > Account Settings > Privacy Settings > Export my data.

You can log out in the Bloom App: Settings > Log out.

All tests that have not yet been completed will be discarded and cannot be recovered. Your user account and completed Bloom Reports will not be affected by deleting your app.

You can delete your account via the Bloom App: Settings > Account Settings > Privacy Settings > Delete my account. Note: This action cannot be undone and we cannot recover your data once your account has been deleted.

We will securely store your reports unless you decide to delete them via the Bloom App.

You can delete a report by going to the “Reports” tab and swiping left on a report. Next, you’ll have to confirm the report deletion.
Attention: Once a report has been deleted, it cannot be recovered.

No, your reports will be synchronized across devices.

No, your reports will not be lost if you update to the latest Bloom App version.

Please make sure you’ve entered the correct credentials. Please refer to the FAQ: What can I do if I forget my password?

You can find our terms and conditions and data policy in your Bloom App Settings.

To start a new testing flow, please make sure your smartphone has at least 30% battery, Bluetooth is enabled, the smartphone is connected to the internet, and that the Bloom Lab is powered on.

The Bloom Lab analyzes the Bloom Test strips in a few minutes, giving quantitative results. In combination with the Bloom App it generates a personalized Bloom Report for you.

(Remark: The Bloom COVID-19 Test is an exception: in this instance, the Bloom System provides a qualitative test result - yes or no to the question of antibody presence). The Bloom Lab utilizes an image recognition system which allows the device to identify what the human eye would likely miss.

Tap on “Connect Bloom Lab” and then hold your device near the light ring of the Bloom Lab.

Tap on “Pair manually” and enter the Bloom Lab serial number (six characters), which can be found on the bottom of the Bloom Lab (see image below). For more instructions, go to the Bluetooth section in the FAQs.

To receive a result you have to keep your smartphone within the Bluetooth connection range of about max. 3-5 meters.

You can safely remove the Bloom Test Strip once your report has been generated and is shown in the Bloom App.

No. Every test strip is for single use only.

You can update your Bloom Lab firmware to the latest version via your Bloom App Settings > Update your Bloom Lab.

It shouldn’t take more than 5 minutes to update your Bloom Lab to the latest firmware version.

It is advised to keep the phone close to the app to get a seamless experience. However, the phone can reconnect to the lab if the Bluetooth connection is broken.

To reset the Bloom Lab, please press the reset button on the bottom of the Bloom Lab for more than 5 seconds. After resetting the device, the first Bloom App to be connected to it is defined as the administrator device.

Check if the Bloom Lab is ready for establishing a connection (the LED ring is illuminated with a dimmed, but stable ring of white light). If not, the Bloom Lab may be booting up or another user is connected to Lab currently. Once the boot-up process is finished or the other user completed their measurement, the Bloom Lab will be ready for you to connect.

Ensure that your smartphone’s Bluetooth is enabled and ready to pair.

Go to the Bluetooth settings of your smartphone and click on “forget” the Bloom Lab. Then, re-establish the connection.

Ensure that you have at least 30% battery life left on your smartphone.

Bring your smartphone close to the Bloom Lab and re-establish the Bluetooth connection.

Try to reinsert your test strip gently again.

Please make sure that the test strip you’ve inserted belongs to the test package.

If the ring is blinking in red please follow the steps on the screen of the smartphone. If the ring is illuminated in a steady red light, please contact Bloom Diagnostics Customer Success at: support@bloomdiagnostics.com

Please restart the Bloom Lab.

The LED ring behaviour and other error messages are explained in the Bloom Lab instructions

Your body can’t produce iron by itself, instead it needs to obtain iron from the foods you eat and the supplements you take. Iron deficiency can result from a diet low in iron, reduced iron absorption (like in case of celiac disease), and blood loss. Having heavy menstrual bleedings is a common cause for iron deficiency in premenopausal women. Other causes are pregnancy, delivery and frequent blood donation.

Iron deficiency is a condition during which your body’s iron stores are low or depleted. A severe form of iron deficiency is called iron deficiency anaemia during which your body will have difficulty making red blood cells and ultimately transporting oxygen. The symptoms are often similar and include:

Tiredness
Weakness
Dizziness
Reduced exercise capacity
Shortness of breath
Headaches
Pale skin
Craving of unusual things like ice, dirt or starch
However, some people don’t show any symptoms.

When iron deficiency is suspected, healthcare professionals often perform a specific blood panel, called iron studies. This blood panel measures your iron, ferritin, transferrin and transferrin saturation levels. From there, iron deficiency can be confirmed when ferritin levels are low.

In some situations, however, ferritin levels do not reflect iron stores - think about inflammation and infection. As a result your ferritin levels may look normal, even though you are iron deficient. If that is the case, your healthcare professional will perform an additional test that measures your transferrin saturation levels. If the results come out low, then iron deficiency can be confirmed.

Iron overload could be a result of various medical issues/events such as:

Haemochromatosis, a rare genetic condition in which the body absorbs too much iron from food
Frequent blood transfusions
Liver disease

Symptoms of iron overload include:

Tiredness
Joint pain
Abdominal pain
Unexplained weight loss
Abnormal bronze or gray skin color
Loss of sex drive
Some people don’t show any symptoms.

Healthcare professionals often use medical and family history, a physical exam, and routine blood tests to diagnose hemochromatosis or other conditions that could cause the same symptoms or complications. The blood test measures ferritin and saturated transferrin levels. If the results are unclear, other tests could be ordered - like genetic tests.

Experts recommend testing for hemochromatosis in people who have symptoms, complications, or a family history of the disease.

Iron deficiency affects a large proportion of the population, especially women of reproductive age (15-49), pregnant women, children, but also groups like vegetarians/vegans, athletes, frequent blood donors, and people with gastrointestinal diseases such as celiac disease (gluten intolerant).

This depends on the underlying cause of your iron deficiency. Please consult your healthcare professional to know which preventive measure fits best to your situation.

If iron deficiency results from a diet low in iron, it might be helpful to know which foods are rich in iron. In general, iron from animal sources is easier to absorb by the body than from plant sources. Some of the best animal sources include liver (chicken, pork, beef), liver pate, eggs, octopus, mussels and oysters. Plant sources that are rich in iron are seaweeds, cereals, dried fruits, lentils, beans and chickpeas.

Also note that Vitamin C helps with the absorption of iron. Rich sources of Vitamin C are fruits, juices, potatoes, cauliflowers and cabbage.

Iron absorption depends on the source of iron. Vegetarian/vegans can benefit from iron rich plant based foods such as:

Seaweed
Cereal
Dried fruits
Nuts
Tofu
Lentils
Beans (kidney beans, lima beans, soybeans)
Chickpeas
What is also important to know is that the absorption of iron from foods and supplements is improved with the help of Vitamin C. Foods with high Vitamin C content are fruits, juices, potatoes, cauliflower and cabbage.

Some foods can inhibit the absorption of iron from foods and supplements, think about milk and milk products, coffee, cacao, grains, nuts and seeds. Maybe it would be better to avoid combining these sources with iron rich foods when you want to increase iron levels.

No. Every test strip is for single use only.

No, because all of the components are intended for single use. Every test kit includes everything you need to perform one test.

AMH stands for Anti-Mullerian Hormone - a hormone produced by the cells lining your ovarian follicles, small fluid filled sacs, which house your egg cells in the ovaries. From a biological perspective, AMH plays an important role in follicle growth and development.

It is a good indicator of how many eggs you have left in your ovaries, also known as the ovarian reserve. For instance, lower AMH levels may be a sign of a smaller egg count, whereas higher AMH levels could be a sign of a higher egg count.

There are many reasons why women choose to take an AMH test. Perhaps you are thinking of starting a family in the future, and are curious about your ovarian reserve. Maybe you’ve been trying to get pregnant, and would like to know whether your ovarian reserve is below, within or above the normal range for your age. From a professional perspective, measuring AMH levels can help in the personalization of your treatment or predict the success of assisted reproductive technology (ART) procedures, like ovarian stimulation, egg freezing and in vitro fertilization (IVF).

The Bloom Ovarian Reserve Test is intended for women between 18 and 39 years old. Now, it is important to know that AMH levels peak between 15 and 25 years old, after which they start to decline and correlate with age. For this reason, if you happen to measure your AMH levels at 18 years old it is possible for these levels to increase until you reach 25 years. After peaking, AMH levels start to decrease and continue to do so as a woman ages until they become undetectable around the onset of menopause. Therefore, there might be a chance that your AMH level is below the quantification limit of our device. On average, women reach their menopause at the age of 51.

Good to know:

In many studies, hormonal contraceptives have been shown to lower AMH levels, which then might not accurately reflect the ovarian reserve. However, the AMH levels tend to recover - and better reflect the ovarian reserve - starting from three months after discontinuation. Interpret your results with caution, if you’re taking any hormonal contraceptives at the time of taking the Bloom Ovarian Reserve Test.

A pregnancy also influences AMH levels, which is why AMH levels should be interpreted with caution in women who are pregnant or recently have given birth. A recent study showed that it can take up to five months for AMH levels to recover, however this period can vary from woman to woman.

High biotin levels interfere with the Bloom Ovarian Reserve Test result. Therefore, it is best to stop any biotin containing supplements for 72 hours before taking the test. However, make sure to always consult your doctor before making any changes to your medication.

It is relevant for women of reproductive age and who are curious about their ovarian reserve.

Every woman is born with about 1-2 million eggs, yet once she reaches puberty she is left with about 400,000 eggs. By her late thirties the number of eggs is less than 50,000. AMH levels, which correlate with the size of the egg cell reserve, start to decline after reaching its peak at early adulthood, and more rapidly after 35 years. Whether an AMH level is considered low, within the normal range (which we call ‘average’) or high, depends on the AMH levels measured in most other women of the same age. To help interpret AMH levels, different normal AMH level ranges have been defined for different age groups as AMH levels always have to be interpreted in the context of other age-matched women.

The fact that AMH levels decrease with increasing age also means that AMH levels should not be compared across different age groups. For example, the same AMH level that could be considered within the normal range for a 39 year old woman, could be considered as ‘low’ for a 26 year old woman.

Your ovarian reserve is not only influenced by age, but also by your genetic background and the environment you are exposed to. It is therefore important to remember that everyone is unique, and that the size of the ovarian reserve only reflects the egg cell quantity but not their quality or your pregnancy chances.

Important to note, is that AMH results from different AMH tests or assays are not always comparable. Therefore, it is necessary to interpret the AMH level in the context of the test used. The Bloom Ovarian Reserve Test will provide you with a personalized report and interpretation of the results according to the latest research.

No AMH test can guarantee or predict your chances of getting pregnant, nor confirm infertility. Fertility depends on so many factors, like your age, the quality of your egg cells, genetics but also the environment you are exposed to. As such it is very difficult to make predictions using only AMH.

For example, a woman might have a low number of eggs, yet if the quality of these eggs is good she might still be able to get pregnant.

The ovarian reserve is a term used to describe the quantity of egg cells.

Overall, AMH levels remain relatively stable throughout the menstrual cycle, and decrease with age after reaching its peak in early adulthood. However, there are a few occasions during which AMH levels can fluctuate such as:

During pregnancy and after giving birth. Multiple studies have shown that AMH levels decline during pregnancy. Once the baby is born, however, AMH levels increase again. A recent study showed that AMH levels restore to basal levels within 5 months after giving birth for most women. The speed in which AMH levels restore can vary from woman to woman.


When taking or recently stopped taking hormonal contraceptives. In many studies, hormonal contraceptives have been shown to lower AMH levels, although they tend to recover - and better reflect the ovarian reserve - starting from three months after discontinuation.


When taking any biotin containing supplements. Biotin containing supplements can also interfere with the AMH test result

In contrast to other ovarian reserve tests, AMH levels remain relatively stable during your menstrual cycle, meaning that it can be measured at any point in time. In addition, the AMH level is a more sensitive marker and easier to perform compared to other ovarian reserve markers, such as Follicle Stimulating Hormone (FSH) and Antral Follicle Count (AFC).

The Bloom Ovarian Reserve Test is a quantitative test, and will provide you with your AMH concentration and a personalized report including the interpretation and fitting recommendations.

Your egg quantity refers to the number of eggs, whereas the quality refers to the condition of the eggs. Pregnancy chances depend on a combination of factors including your egg quantity and quality, which in turn, are influenced by your age, genetic background and environmental factors. This means that having low AMH levels does not necessarily mean that your ovarian reserve is too low to get pregnant.

Over the years, a number of tests have been developed to assess the ovarian reserve. Examples are the Follicle Stimulating Hormone (FSH) and the Antral Follicle Count (AFC) tests. In contrast to AMH, which can be measured at any day of the cycle through a quick blood test, FSH is preferably measured on the 3rd day of the menstrual cycle, whereas the AFC requires ultrasound equipment and expertise on how to use it.

Possibly. Many studies have shown that hormonal contraceptives tend to lower AMH levels. Upon discontinuation of the hormonal contraception, the AMH levels tend to recover and again better reflect the ovarian reserve (starting from three months after the discontinuation).

In 10% of women, the ovarian reserve diminishes at a faster rate. Lower AMH levels can be a result of a diminished ovarian reserve, or DOR, which is when the ovarian reserve is low. It might be good to know that having a diminished ovarian reserve does not necessarily mean that a woman is not able to conceive.

AMH levels are also low or undetectable in case of premature ovarian insufficiency (POI), which is a condition characterized by premature egg cell depletion or dysfunction. POI affects 1% of women under the age of 40.

In case a fertility treatment is considered, low AMH levels could notify the gynecologist about an increased risk for poor ovarian response to ovarian stimulation (which is done during some fertility treatments). Poor ovarian response is a condition in which less than four egg cells are developed after receiving ovarian stimulation treatment. Identifying low AMH levels, ahead of time, could ultimately help to adjust the treatment protocol and dosage.

Higher AMH levels can be a result of polycystic ovary syndrome, or PCOS, a common hormonal disorder. PCOS is characterized by irregular menstrual cycles, high levels of male hormones (like testosterone) and polycystic ovaries. PCOS affects somewhere between 8-13% of women of reproductive age. However, many cases remain undiagnosed.

When it comes to certain fertility treatments that include an ovarian stimulation step, high AMH levels can indicate a risk for ovarian hyperstimulation syndrome. This syndrome is defined as having a strong or excessive reaction to ovarian stimulation treatments. Therefore, identifying high AMH levels, beforehand, could aid in the personalization of fertility treatments.

TSH - Thyroid Stimulating Hormone - is the main regulator of thyroid function in the human body. TSH itself is secreted by the pituitary gland.

Measuring TSH levels is considered as the best test to assess the thyroid function and diagnose hypothyroidism.

The Bloom Thyroid Test is suitable for everyone above 18 years old, however, taking the test is advised to those who feel symptoms such as weight gain, or hair loss that can indicate an underactive thyroid and would like to screen for hypothyroidism.

In most cases, the normal reference for TSH is between 0.4 and 4.5 mIU/L. A level below 0.4 mIU/L can be a sign of an overactive thyroid (also called hyperthyroidism), whereas a TSH level above 4.5 mIU/L typically indicates an underactive thyroid (hypothyroidism).

Hypothyroidism is referred to as a state of decreased circulation and of thyroid hormones, in the human body, that can occur as a result of a malfunction of the hypothalamic-pituitary-thyroid system. In iodine sufficient countries, hypothyroidism is mainly caused by the autoimmune disorder Hashimoto’s thyroiditis. Other causes can be iodine deficiency, certain drugs (e.g. amiodarone, lithium), destructive treatments for hyperthyroidism or irradiation injury. It might be good to know that hypothyroidism is more common in women than men.

Signs and symptoms of hypothyroidism can vary a lot from person to person, and depend on age, as well as the duration and severity of thyroid deficiency. Some people show only a few symptoms or none at all. Common symptoms include:

Weight gain
Hair loss
Constipation
Fatigue
Dry skin
Intolerance to cold

TSH levels are elevated and above normal range can be an indication of hypothyroidism.

According to the American Thyroid Association (ATA), screening of all adults above age 35 is recommended every 5 years. However, there is no consensus among different organizations. Sources however agree that with age, a risk of hypothyroidism increases.

Iodine is an essential element that is required by your thyroid gland to function properly and produce thyroid hormones. However, excess iodine intake can also harm the thyroid. Therefore, before taking any iodine supplements it is always advised to talk to a doctor first.

Hypothyroidism is a condition that can be treated with prescribed medication.

The Bloom Thyroid Reserve Test is a quantitative test, and will provide you with your TSH concentration and a personalized report including the interpretation and fitting recommendations.

C-reactive protein (CRP) is a well-established indicator of inflammation widely used in clinical practice by healthcare professionals. CRP is a protein produced by the liver as part of the acute phase response to inflammation. Although CRP is a sensitive indicator of inflammation, it is not specific.

Inflammation is an important physiological response to various triggers, such as infection, tissue injury, trauma, radiation, or contact with chemical compounds (e.g. alcohol, glucose). Inflammation limits the impact of the harmful factor, neutralizing it and repairing damaged tissue.

Inflammation follows a very complex mechanism and can sometimes increase disproportional to the stimuli, damaging also healthy tissue in the process.

It is relevant for anyone interested in estimating their level of inflammation. The test can be used by anyone above 18 years of age.

The cut-offs are defined based on the clinical literature and guidelines. Literature research is conducted by our expert medical team.

Levels below 3 mg/L are considered to be within the normal reference range.

The Bloom Inflammation Test has five different classifications depending on the CRP levels. These are: Normal Range <3 mg/L, Low Grade Inflammation 3-10 mg/L, Mild Inflammation 10-40 mg/L, Moderate Inflammation 40-100 mg/L, High Grade Inflammation >100 mg/L.

It is not possible to diagnose a single condition based on the level of CRP only. CRP is not specific to the cause of inflammation even though it is a sensitive indicator, i.e. your CRP level rises in response to injury, infection, inflammation and more. CRP-level must always be interpreted in the light of the clinical picture taking present signs and symptoms, as well as the medical history and sometimes other laboratory test results into consideration.

Some common factors influencing the CRP levels are:

Physical inactivity
Obesity
A diet with high saturated fat, trans fats or refined sugar
Smoking
Stress
Sleep disorders
Increasing age

Elevated CRP can be caused by many different conditions. Below you can find a list of some of the conditions associated with increased CRP levels:

Asthma
Autoimmune diseases like rheumatoid arthritis
Bacterial Infection
Bronchitis
Cancer
Celiac disease
Chronic Obstructive Pulmonary Disease
Connective Tissue Disease
Diabetes
High blood pressure (hypertension)
Inflammatory Bowel Disease e.g. Crohn's disease
Major trauma
Pancreatitis
Pneumonia
Systemic (body-wide) fungal infections
Viral Infections

Cystatin C is a well-established indicator of kidney function widely used in clinical practice by healthcare professionals. The concentration of cystatin C in blood is a suitable marker to assess kidney function and chronic kidney disease by calculating the estimated glomerular filtration rate (eGFR). The glomerular filtration rate indicates how well your kidneys are working.

The kidneys are one of the most important organs in the human body. One of the most important functions of the kidneys is to filter out harmful substances from the blood and at the same time retain those valuable for the body. It is the kidneys that take care of removing toxins, excess salt, and other waste products from the blood.

In addition to the filtering effect, the kidneys act as a regulator, responsible for maintaining a constant environment inside the body, the so-called homeostasis. They regulate substance balance e.g. the electrolyte (take care of the right amount of sodium and potassium in the body) and control the amount of water in the body.

As mentioned above one of the most important functions of your kidneys is to filter the blood by removing waste and extra water to make urine. The glomerular filtration rate (GFR) represents how well your kidneys are filtering blood.

Chronic kidney disease can also be called chronic kidney failure, and means that the kidney function is reduced for a longer time period. The function of your kidneys includes filtering blood. Thus removing excess fluids from your blood, which are then removed in the form of urine. In turn, a reduced kidney function means that water, electrolytes and waste products may be retained in your body. Importantly symptoms of kidney disease might present when the condition already reaches an advanced stage.

It is relevant for anyone interested in estimating their kidney function. The test can be used by people above 18 years of age. Groups especially interested in estimating their kidney function might be:

People with diabetes Type I and Type II
People with obesity
People with hypertension (high blood pressure)
Smokers
People with long term use of NSAIDs
People with a family history of kidney disease

Those groups might be at higher risk of a reduced kidney function.

The cut-offs are defined based on the clinical literature and guidelines. Literature research is conducted by our expert medical team.

It is not possible to diagnose a condition like kidney disease based on the level of cystatin C alone. Cystatin C-level must always be interpreted in the light of the clinical picture taking present signs and symptoms, as well as the medical history and sometimes other laboratory test results into consideration. The Bloom Kidney Test is a test for measurement of cystatin C levels in capillary blood used to evaluate kidney blood filtration rate. It is intended for screening for chronic kidney disease and assessment of kidney function in individuals 18 years old and above.

Some common risk factors for the development and progression of Chronic Kidney Disease include:

Diabetes
Obesity
Smoking
High blood pressure
High consumption of Non-steroidal Anti-inflammatory drugs
Age
Family history of kidney disease