Skip to content
Most side effects of hair Platelet-Rich Plasma (PRP) treatment are mild and short-lived. Pain, redness, swelling, and headaches usually settle within 24 to 72 hours. Minor bruising at the blood draw site or some temporary hair shedding can take a little longer, often around 2 to 3 weeks, before it clears on its own.
Hair PRP is a low-risk procedure. Most people feel only mild tenderness or redness for a day or two. Other than that, any serious side effects after PRP hair treatment are rare, and the common ones fade quickly.
In fact, according to a 2025 systematic review of 43 randomised controlled trials, Hair PRP has a proven safety profile with no systemic side effects. Patients experienced significant improvements in hair density and reduced shedding, with side effects restricted to temporary, mild scalp sensitivity post-injection.
Knowing what is normal and how long it should last helps you spot the rare signs that need a doctor.
What Are the Side Effects of Platelet-Rich Plasma Treatment?
PRP treatment can cause mild, short-term reactions around the injection sites. Most settle within a few days. Because the treatment uses your own blood, the risk of a bad reaction is low. Still, some short-term effects are common right after the injections. These include:
- Pain or discomfort at the injection site
- Scalp sensitivity or tenderness
- Temporary scalp swelling and tightness
- Mild scalp itching
- Drowsiness
- Minor bleeding or bruising at the injection site
While uncommon, potential rare complications associated with improper technique or inadequate aftercare include:
- A severe allergic reaction to the anaesthetic given before the injections
- Infection at the injection site, often from poor aftercare
- Nerve damage, usually linked to poor technician skill
- Minor scarring at the injection sites
Note: Choose a trained, qualified provider for your PRP therapy. Good technique and clean aftercare can help prevent nearly all side effects and increase the chance of faster recovery.
How to Reduce Post-PRP Hair Treatment Side Effects?
The best way to lower your risk after PRP is to follow your trichologist's advice for before- and after-treatment care. Good preparation and good aftercare can help prevent most problems. The pointers below walk you through some of the care measures:
Taking specific steps to prepare your scalp and stabilise your circulatory system creates optimal biological conditions for the injections, resulting in a safer procedure and more effective follicle stimulation. Here are some care tips to follow before your PRP treatment:
- Consult your doctor to stop or adjust supplements with blood-thinning effects (like vitamin A, vitamin E, and cod liver oil) at least 7 days before, only under your doctor's guidance.
- Avoid non-steroidal anti-inflammatory drugs (like ibuprofen and aspirin) for a few days beforehand.
- Avoid smoking and alcohol for a few days before the procedure.
- Do not dye your hair for at least 7 days before the session.
- Keep your scalp away from heat, and drink more fluids the day before.
- Wash your hair well on the morning of the treatment, but skip styling products afterwards.
Following a structured aftercare routine protects the open micro-injection points from bacterial infection while allowing the natural inflammatory healing process to work uninterrupted. Here are a few care tips to follow after your PRP treatment:
- Wash your scalp again in the evening, and keep the area clean over the next few days.
- Avoid hard exercise for two days.
- Keep your scalp out of heat and direct sun for a few days.
- Avoid alcohol and smoking, as they slow healing.
- Skip saunas and public pools for a few days.
- Wait about 3 days before using minoxidil or any topical hair treatment.
- Call the clinic or your doctor right away if you notice infection, fever, or severe pain that painkillers do not ease.
What is the Recovery Time After PRP Therapy?
Recovery from PRP is quick and within a few days. Since it is a minimally invasive procedure with little to no downtime, most people return to normal life the same day.
While PRP requires minimal downtime, it’s completely normal to notice a few temporary side effects as your scalp heals. If you experience any immediate reactions after the procedure, they typically fall into these categories:
|
Recovery Window |
What to Expect |
|
Right after |
Mild tenderness, swelling, or redness at the injection sites. This usually eases within a few hours to a day. |
|
First 24–48 hours |
Some scalp sensitivity. Do not wash your hair or use harsh products for at least 24 hours. Avoid touching or scratching the scalp. |
|
3–5 days |
You can return to work and daily routines, but avoid heavy exercise and sweating for 2 to 3 days. Any redness or bruising should fade. |
|
1 week |
The scalp usually looks and feels normal, with no visible signs of the procedure. |
|
Long-term |
Use any prescribed shampoos as directed. Avoid colouring, straightening, or other harsh treatments for at least a week. |
There are no known long-term side effects of PRP hair treatment for most people. The effects are short-lived and settle as the scalp heals.
Is PRP Treatment the Best Solution for Your Hair Fall?
PRP can help with mild to moderate hair fall. But it may not be enough for more advanced hair fall, where the follicles are already lost. So it is not the right answer for everyone. If you are unsure which treatment suits your type of hair fall, the smart step is to see a specialist first.
In a proper diagnostic setup, a specialist can use tools like a scalp scan, a hair pull test, or blood tests to find the real reason your hair is falling out. Once the cause is clear, your treatment can be matched to your scalp’s actual condition. This gives you a plan built around your hair type, your lifestyle, and your needs, instead of one-size-fits-all advice.
PRP treats the scalp. But your hair fall may be driven by something deeper, like your hormones, nutrition, or overall hair health. That is why finding the root cause comes first.
Frequently Asked Questions
1. How long do hair PRP side effects last?
Most side effects last only 24 to 72 hours. Pain, redness, and swelling settle within a few days. Minor bruising or temporary shedding can take 2 to 3 weeks to clear. Serious or lasting effects are rare.
2. Are there any long-term side effects of PRP hair treatment?
For most people, no. PRP uses your own blood, so the risk is low. There are no known long-term side effects of PRP hair treatment in typical cases. Rare problems, like infection or scarring, are usually linked to poor technique or poor aftercare, which is why a trained provider matters.
3. Is hair shedding after PRP normal?
Yes, some temporary shedding can happen in the first few weeks. It usually settles on its own. If shedding is heavy or keeps getting worse, check with your provider.
4. How soon can I wash my hair after PRP?
Wait at least 24 hours before washing your hair. After that, use a gentle shampoo and avoid harsh or chemical treatments for about a week.
5. Is PRP for hairy risk?
PRP is a safe treatment option because it uses your own blood, so allergic reactions are extremely rare. Mild side effects like temporary scalp soreness, redness, or light bruising at injection sites are normal and clear up in a few days.
6. Is 2 sessions of PRP enough?
No. Two sessions of PRP are not enough to see lasting results. PRP requires an initial "loading phase" of 3 to 6 sessions spaced 4 weeks apart to effectively stimulate hair growth, followed by periodic maintenance.
7. Is PRP 100% safe?
While no medical procedure is entirely risk-free, PRP is considered extremely safe. Minor risks include temporary soreness, scalp tightness, swelling, or localized infection if proper aftercare instructions aren't followed.
8. Does PRP regrow hair permanently?
No. PRP does not cure the underlying root causes of hair loss (like genetics or DHT). While it significantly improves density and hair thickness, routine maintenance sessions every 6 to 12 months are necessary to keep the results.
References:
- https://www.usz.ch/en/department/dermatology/service/autologous-blood-therapy-platelet-rich-plasma-for-hair-loss/
- https://dermatology.melbourne/prp-injection-treatments-for-hair-loss/
- https://www.webmd.com/fitness-exercise/platelet-rich-plasma-injections
- https://pmc.ncbi.nlm.nih.gov/articles/PMC11295534/
- https://wimpole.com/blog/prp-hair-treatment-side-effects/
- https://www.manipalcigna.com/side-effects/prp-treatment-side-effects
- https://www.kaya.in/forum/prp-treatment/what-is-the-recovery-time-after-prp-therapy
Read More Blogs
Is Borewell Water Worse Than Municipal Water for Hair?
Yes, since borewell water has a very high mineral count, it is much worse for your hair...
Hard Water vs Soft Water for Hair: Which Is Better for Hair Health?
In most cases, soft water is a better choice to maintain healthy hair. It works well wi...
Can Finasteride Work After Hair Transplant Without Minoxidil?
Yes, Finasteride works well without Minoxidil after a hair transplant surgery. It preve...
Can Finasteride Prevent Future Hair Loss Even Without Visible Balding?
Yes, finasteride can help prevent future hair fall only if early, subclinical pattern t...
When Is It Too Late to Start Finasteride?
It is usually not too late to start finasteride as long as some active, miniaturised fo...
