
Most hip and knee replacement recoveries are slower and bumpier than people expect, and a slow week does not mean you are behind schedule. You are likely off track only if pain, swelling or stiffness is getting worse, or if you have stopped improving over several weeks. In those cases, tell your surgeon's team or physiotherapist early, because problems are easier to fix when they are caught sooner.
This guide gives you typical ranges, a simple way to check your own progress and a clear list of warning signs. Your surgeon's and hospital team's instructions always come first.
Why "behind schedule" is a tricky idea
There is no universal timetable. Recovery depends on:
- Your fitness before surgery. Stronger muscles and better mobility usually help.
- Which joint was replaced. Knees often feel stiffer and sorer for longer than hips.
- Your age and other health conditions, such as diabetes, heart or lung conditions or other painful joints.
- How the surgery went, including whether it was a first replacement or a revision.
- Pain and sleep. If pain stops you exercising or sleeping, rehab slows down.
- Support at home and how easily you can keep up your exercises.
Comparing yourself with a neighbour or an online story is rarely helpful. Compare yourself with where you were two weeks ago.
Typical milestones (not deadlines)
| Stage | Common experience |
|---|---|
| First 2 weeks | Swelling, bruising, tiredness, regular painkillers, walking with a frame or crutches, daily exercises |
| Weeks 2 to 6 | Pain easing, walking further, still using an aid for some people, stiffness often worse after rest |
| Weeks 6 to 12 | Many people swap to a stick or no aid, stairs feel easier, strength returning, driving may restart if your surgeon agrees |
| 3 to 6 months | Everyday tasks feel more normal, but swelling and tightness can linger, especially around the knee |
| 6 to 12 months | Gradual improvements can continue, and many people say the joint "feels like their own" |
Our guides on walking aids after hip replacement, driving after a hip or knee replacement and why a knee can still be swollen four weeks after surgery cover specific milestones in more detail.
Normal bumps in the road
These are common and usually not a sign of a problem:
- Swelling and warmth that comes and goes, and is worse at the end of the day or after activity
- Feeling stiff in the morning or after sitting
- Good days and bad days, including a "dip" after you do more than usual
- Night-time aching
- Numb patches around the scar
- Feeling tired, emotional or fed up. Low mood after surgery is common.
Signs your recovery may be slower than it should be
Raise these with your surgical team or physiotherapist, ideally within days rather than waiting for your next routine appointment:
- No improvement over several weeks. Your walking distance, knee movement or strength has stopped getting better.
- Pain that is getting worse rather than gradually easing, or pain that changes character.
- A stiff knee. If your knee is not straightening or bending as your team expected, ask early. There are treatments for stiffness, and the options depend on how soon it is picked up.
- A limp that is not improving, or a joint that gives way.
- Swelling that keeps building, rather than settling with rest and elevation.
- Struggling with basic tasks, such as getting out of a chair, using the toilet or managing the stairs.
- Not being able to do your exercises because of pain, fear or tiredness.
You do not need to wait for a crisis. Asking "is this normal?" is exactly what your team is there for. NICE guidance on joint replacement says people should be given advice on self-directed rehabilitation before leaving hospital, so you should have a plan and a contact number.
Warning signs that need urgent attention
⚠️ When to get help quickly
Call 999 or go to A&E if:
- You have sudden chest pain, severe breathlessness or you cough up blood. These can be signs of a blood clot in the lung.
- After a hip replacement, you have sudden severe pain, cannot put weight on the leg, or the leg looks shorter or turned in or out. This may mean the hip has dislocated.
Call NHS 111, your GP or your surgical team the same day if:
- The wound is red, hot, more swollen, leaking or smells, or you have a high temperature or shivering
- One calf is painful, swollen, red or hot. The NHS lists these as signs of a blood clot (DVT)
- Pain suddenly gets much worse, or your painkillers are no longer working
If you are unsure, call 111.
How to check your own progress
A simple weekly check removes guesswork. Choose the same time of day, write the answers down and look back over a few weeks.
- Walking: How far or how long can you walk before you need to stop? Do you need less support than last week?
- Joint movement: For a knee, can you straighten it fully and bend it more than before? Ask your physiotherapist how to measure this.
- Stairs and chairs: Is getting up from a chair or using the stairs easier?
- Pain: Score it from 0 to 10 at rest and on activity. Is the trend going down?
- Swelling: Is it settling overnight? Taking a photo each week helps.
- Sleep and mood: Are you sleeping better and feeling more like yourself?
Showing this record to your surgeon or physiotherapist gives them real evidence instead of a vague impression.
What a physiotherapist can do if you feel stuck
Physiotherapy cannot change the surgery, but it can make a big difference to how you recover from it. A physiotherapist may:
- Look at why progress has stalled, such as pain, swelling, weakness, fear or poor technique
- Adjust your exercises so they are hard enough to help but not so hard that they flare things up
- Treat stiffness, scar tightness and swelling. Our guides to managing swelling after knee or hip replacement and scar tissue pain after surgery explain this.
- Check your walking aid, shoes and home set-up
- Liaise with your surgical team if they see something that needs a medical review
Keeping your confidence up
Many people feel anxious about overdoing it or damaging the new joint. A modern joint replacement is designed to be used, and gentle, guided movement is part of the plan. Keeping a record, setting small weekly goals and celebrating them helps. Tell someone if you feel low or anxious for more than a couple of weeks.
Not sure whether your recovery is on track? Book a post-surgical home assessment. The cost is £90 for 60 minutes, and no GP referral is needed.
This guide is general information, not personal medical advice. Always follow the instructions from your surgeon and hospital team.
Frequently Asked Questions
Many people feel much better by around 3 months, but recovery often continues for 6 to 12 months. Knees tend to take longer than hips. Your own timeline depends on your fitness, health and how your surgery went.
Yes. Short dips, such as a sore or swollen joint after a busy day, are common. A setback that lasts more than a few days, keeps getting worse or comes with fever or wound changes needs a call to your surgical team.
Worry when pain is getting worse instead of easing, wakes you every night, is not helped by your usual painkillers or comes with redness, heat, swelling or a temperature. Sudden severe pain after a fall also needs urgent assessment.
Tell your surgeon's team or physiotherapist as soon as you notice, rather than waiting. There are ways to treat a stiff knee, and the choices depend on how long it has been stiff.
Often, yes. A physiotherapist can find out what is holding you back and change your plan. If they are worried about something medical, they will help you contact your surgeon.