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Before PRP therapy, your doctor will order a pre-treatment Platelet-Rich Plasma (PRP) screening panel to check whether the treatment is safe and suitable for you. This usually includes screening for active cancer, systemic infections, blood disorders, anaemia, platelet count, iron or ferritin levels, and a review of current medicines that may affect bleeding or platelet function.
A PRP blood test usually means a set of checks done before a PRP session. There is not one fixed test with the same panel for everyone, as every person comes with a different set of goals for their PRP therapy.
The doctor first looks at whether your blood can provide enough platelet support and whether the procedure can be done safely on your body. Then they check whether your hair fall has any other trigger that PRP alone cannot correct, such as low iron, thyroid imbalance, vitamin deficiency, recent illness, stress, or hormonal changes.
What Does a PRP Blood Test Check Before Treatment?
A pre-PRP evaluation looks at two things: whether the procedure is safe for you and whether your hair fall pattern can respond to PRP. The exact tests can vary by clinic, health history, and scalp condition.
A standard PRP blood test panel typically evaluates the following factors listed below:
|
Test or check |
Why is it checked? |
|
CBC with platelet count |
Checks red blood cells, white blood cells, haemoglobin, and platelet count. |
|
Hemoglobin level |
Helps identify anaemia or low blood reserves, which can affect your readiness for a blood-draw-based procedure. |
|
Platelet count |
Helps the doctor understand whether your blood sample has enough platelets to prepare PRP properly. |
|
Clotting history or coagulation profile |
Used when there is a history of unusual bleeding, bruising, blood-thinning medicines, or clotting concerns. |
|
Infection screening if advised |
Some clinics ask for tests such as HIV, hepatitis B, or hepatitis C for safe blood handling and procedural hygiene. |
|
Iron, vitamin D, B12, and folate |
These are not PRP-specific tests, but they help identify nutritional triggers behind hair fall. |
|
Thyroid or hormonal tests if needed |
These help when hair fall appears linked to thyroid dysfunction, PCOS signs, cycle changes, or hormone-related thinning. |
|
Medication review |
Medicines such as blood thinners or anti-inflammatory drugs can affect bleeding risk or platelet activity, so the doctor needs to review them before treatment. |
Is PRP Treatment Safe for Hair?
Yes, in suitable cases, PRP is generally considered a low-risk treatment because it uses your own blood. The risk of allergy remains low compared with treatments that use external substances.
Safety still depends on the clinic, the doctor, and your health status. The procedure involves blood handling and scalp injections, so sterile equipment, trained administration, proper screening, and correct aftercare matter.
When PRP May Not Be the Right First Step?
PRP should not be chosen only because hair fall has increased. It works best when the scalp still has active follicles, and the hair fall pattern fits the treatment.
Your doctor may delay or avoid PRP if you have:
- Very low platelet count
- Severe anemia
- Active scalp infection
- Uncontrolled medical illness
- Bleeding or clotting disorder
- Ongoing use of blood-thinning medicines
- Severe dandruff, redness, or scalp inflammation
- Hair fall mainly driven by untreated deficiencies or hormonal triggers
PRP can support active follicles, but it cannot replace treatment for low iron, thyroid imbalance, PCOS-related hair fall, active scalp disease, or advanced bald areas where follicles are no longer active.
What to Do Before PRP Hair Treatment?
Before PRP hair treatment, your main job is to help the doctor confirm safety, suitability, and treatment readiness. That means completing the advised tests, sharing your health history, reviewing medicines, and preparing your scalp properly before the session.
Once your doctor confirms that you can proceed, follow these preparation steps carefully:
1. Complete the advised blood tests
Get the recommended tests done before the appointment, so your doctor can review the results and decide whether PRP suits you.
2. Share your medical history
Tell your doctor about anaemia, thyroid issues, PCOS, liver disease, autoimmune conditions, infections, bleeding problems, recent illness, surgery, or pregnancy plans.
3. Discuss all medicines and supplements
Do not stop any medicine on your own. Ask your doctor about aspirin, ibuprofen, other NSAIDs, blood thinners, steroids, supplements, or any medicine that affects bleeding or platelet activity.
4. Stay hydrated
Drink enough water before the session unless your doctor gives different instructions. Hydration can make the blood draw easier.
5. Eat a light meal
Do not arrive on an empty stomach unless your clinic asks you to. A light meal can reduce the chance of dizziness during or after blood draw.
6. Avoid alcohol before the session
Alcohol can affect hydration and bleeding tendency, so many doctors advise avoiding it before treatment.
7. Keep the scalp clean
Wash your hair with a mild shampoo on the day of the procedure and avoid applying heavy oils or styling products.
What Happens If Your Reports Are Not Suitable?
If your reports show low platelets, anaemia, infection risk, or another concern, your doctor may postpone PRP and treat the underlying issue first. This does not mean PRP can never work for you. It means your body may need correction before the treatment can be considered safely.
In some cases, your doctor may suggest another hair fall plan, such as scalp treatment, nutrition correction, topical medicines, or further testing.
PRP can support active follicles, but it cannot correct every cause of hair fall on its own. If low nutrition, stress, hormonal imbalance, scalp inflammation, or poor recovery continues in the background, the result may stay limited. The right plan starts with knowing what is driving your hair fall first.
References
- https://pmc.ncbi.nlm.nih.gov/articles/PMC4622412/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC11295534/
- https://medlineplus.gov/ency/article/003647.htm
- https://medlineplus.gov/bloodcounttests.html
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