Most people notice improvement in their knee about two to six weeks after a PRP injection for knee pain. The bigger gains take longer and tend to build over the three to six month mark. PRP isn’t instant, and that surprises many patients. Here’s what the timeline looks like and what can change it.
According to Dr. Avinashdev Upadhyay, an orthopedic surgeon in Navi Mumbai, “People walk in hoping to feel better in a few days. PRP needs longer than that. The effect builds slowly, so I ask patients to wait a few weeks before judging it.”
Dr. Upadhyay’s Clinical Tip
“Many patients write PRP off at week two because nothing dramatic has changed. That’s usually too early to tell. Keep up your physiotherapy and review progress at six weeks.”
Wondering if PRP could work for your knee?
How Soon Does PRP Start Working on Your Knee?
Think of PRP as a gradual process with a few clear stages.
- First week: Your knee may feel sore or stiff after the injection. That’s normal and fades within days.
- Weeks 2 to 6: This is when many people first notice less pain and an easier walk.
- Months 3 to 6: Results tend to peak here and stairs or longer walks may feel easier.
- After 6 months: Some people experience relief for a year or longer while others need a repeat session.
Our page on PRP injections explains how the treatment is planned and who it suits.
What Changes How Fast PRP Works?
Two people can get the same injection and recover at different speeds. A few things explain why.
- Arthritis stage: Early to moderate arthritis usually responds best. Badly worn joints are harder to predict.
- Number of sessions: Some knees need more than one injection a few weeks apart.
- Weight and activity: Extra weight and high impact sport load the joint more. Gentle exercise helps it along.
- Painkillers: Certain anti inflammatory tablets can blunt PRP. Ask your doctor before taking any.
Early action opens up more choices, and that’s true for hips too. Our guide explains whether Stage 2 AVN can heal without surgery.
Why Choose Dr. Avinashdev Upadhyay for PRP Knee Pain Treatment?
Dr. Avinashdev Upadhyay has over ten years of experience and 500+ joint replacements behind him. His Australian fellowship in robotic hip and knee replacement helps him tell which knees will respond to an injection and which need another plan. Every visit starts with a proper look at your joint and your goals.
He suggests non surgical options first and recommends surgery only when PRP is unlikely to help. Call +91 93260 59062 to discuss your options.
Patient Stories
Frequently asked questions
1. Does a PRP injection in the knee hurt?
There’s some discomfort during the injection and mild soreness for a few days.
2. Can PRP cure knee arthritis?
No. It can ease symptoms but it can’t undo advanced joint damage.
3. How many PRP sessions will I need?
That depends on your knee. Your doctor will decide after examining you.
4. When can I get back to normal activity?
Most people resume light activity within a few days if their doctor agrees.
References:
- PubMed — Autologous platelet-rich plasma versus hyaluronic acid, corticosteroids or saline for knee osteoarthritis: can blood draw volume serve as a proxy for platelet dose? A systematic review and meta-analysisPubMed — Effects of Platelet-Rich Plasma on Pain and Muscle Strength in Patients With Knee Osteoarthritis
Disclaimer: This blog is for educational purposes only. Please consult a specialist for a personalised evaluation.