Common symptoms
- Ache around or behind the kneecap
- Stiffness after rest or first thing in the morning
- Swelling or puffiness around the joint
- Pain on stairs, squatting or kneeling
- Clicking, catching or locking
- Knee giving way or feeling unstable
- Tenderness just below the kneecap
Knee pain can arrive suddenly after a twist on the pitch, or build so slowly that you only notice it when stairs, kneeling and longer walks start to feel like hard work. Whatever the cause, most knee problems improve with the right mix of strengthening, sensible changes to activity and clear advice, and surgery is needed far less often than many people expect.
At Tylurs com, our physiotherapists start by working out what is driving your symptoms. It might be osteoarthritis, irritation around the kneecap, an injured ligament or meniscus, or an overloaded tendon. You then get a plain explanation and a plan you can follow between sessions.
What causes knee pain?
The knee is a hinge joint that takes a large share of your body weight every time you walk, climb stairs or squat. That makes it prone to both sudden injuries and gradual overload. These are the causes we see most often.
Knee osteoarthritis
Osteoarthritis is the most common type of arthritis in the UK, and the knee is one of the joints it affects most, according to the NHS guide to osteoarthritis. The smooth cartilage lining the joint thins and the joint works harder to repair itself, which can cause pain, stiffness and sometimes swelling.
It is most common from middle age onwards, but it is not simply “wear and tear”. Many people with changes on an X-ray have little pain, and symptoms often go up and down rather than steadily worsening.
Patellofemoral pain (pain around the kneecap)
Often called runner’s knee, this is an ache at the front of the knee, around or behind the kneecap. It tends to flare on stairs (especially going down), when squatting or kneeling, when running downhill and after sitting for a long time with your knees bent. It is common in runners, active teenagers and anyone who has recently stepped up their activity. Our article on runner’s knee physiotherapy covers the training changes that help.
Ligament and meniscus injuries
Ligaments hold the knee stable, while the two menisci are C-shaped cushions of cartilage between the thigh bone and shin bone. A twist, a sudden stop or change of direction, or a tackle can sprain or tear a ligament such as the anterior cruciate ligament (ACL), or tear a meniscus.
Clues include a pop at the time of injury, swelling within hours, the knee giving way, or catching and locking. Many of these injuries do well with rehabilitation alone. Where surgery is needed, physiotherapy before and after the operation is a central part of recovery, as our ACL surgery recovery timeline shows.
Tendon pain around the knee
The patellar tendon, just below the kneecap, and the quadriceps tendon, just above it, can become painful when they are loaded more than they are used to, typically with jumping, running or heavy squats. The pain is usually well localised and often eases as you warm up, only to feel worse later or the next morning. Our page on tendinopathy explains why these problems respond to gradual loading rather than rest.
Pain from nearby joints
Not every case of knee pain starts in the knee. A problem in the hip can refer pain down the thigh to the knee, and weak hip muscles, stiff ankles or an old, poorly rehabilitated ankle sprain can change how load passes through the joint. If you also have groin or outer-hip symptoms, read our guide to hip pain.
Knee pain symptoms and what they can suggest
Where your knee hurts and what makes it worse give useful clues, although only a proper assessment can confirm the cause.
| What you notice | Possible cause |
|---|---|
| Ache around or behind the kneecap, worse on stairs, squatting or long sitting | Patellofemoral pain |
| Stiffness after rest and pain on longer walks, starting gradually in middle age | Knee osteoarthritis |
| Pain just below or above the kneecap with jumping or running | Patellar or quadriceps tendinopathy |
| Twisting injury, rapid swelling, knee giving way | Ligament injury, such as the ACL |
| Pain on the inner or outer joint line with catching or locking | Meniscus tear |
Many people have more than one factor at play, such as mild osteoarthritis alongside weak thigh muscles, so your plan is built around you rather than a label.
How we assess knee pain
We start by asking how the pain began, what eases and aggravates it, and what you want to get back to. We then watch how you walk, squat, step down and balance on one leg, test the strength of your thigh and hip muscles, and gently examine the ligaments, menisci and kneecap.
For most people with suspected osteoarthritis, a scan is not needed. NICE guidance on osteoarthritis advises that it can be diagnosed clinically, without imaging, in people aged 45 or over who have activity-related joint pain and either no morning stiffness or stiffness lasting no longer than 30 minutes. If anything suggests a different or more serious problem, we will explain why and advise you to see your GP or a specialist.
Physiotherapy treatment for knee pain
Exercise is the foundation of treatment for most knee problems. For osteoarthritis, NICE describes therapeutic exercise and weight management (where appropriate), with information and support, as the core treatments. Your programme is tailored to your knee, your fitness and your goals.
Strengthening the quadriceps and hips
Strong thigh muscles act as shock absorbers and help control the kneecap. We usually begin with exercises you can do comfortably, such as sit-to-stands from a raised chair, straight-leg raises, step-ups and supported mini-squats, then progress them as your knee settles.
Hip strength matters too. Weak hip muscles can let the knee drift inwards as you step down, increasing load on the front of the knee. Bridges, side-lying leg lifts and banded side steps are common starting points.
Adjusting activity without stopping
Complete rest rarely helps knee pain in the long run, because muscles weaken and the joint becomes less tolerant of load. Instead, we help you find the level of activity your knee can handle now and build from there. That might mean:
- shortening runs or walks, or splitting them into two
- swapping some sessions for cycling or swimming
- adding hills, stairs and deeper squats back gradually
- spreading kneeling jobs, such as gardening, across the week
A little discomfort during exercise is usually acceptable, as long as it settles within about 24 hours and is not building from week to week.
Weight management advice
If you are carrying extra weight, losing some of it reduces the load through your knees with every step and often eases knee pain. NICE advises that for people with osteoarthritis who are living with overweight or obesity, any amount of weight loss is likely to help, and losing 10% of body weight is likely to be better than 5%. We help you build activity into your week in a way your knees tolerate, and can suggest talking to your GP about further support.
Bracing, taping and insoles
Supports are mainly short-term aids rather than treatments in their own right. Taping may ease pain around the kneecap while you build strength, a brace can give confidence after some ligament injuries, and insoles or better footwear may help if your foot position is contributing. NICE advises against routinely offering insoles, braces or tape for osteoarthritis unless there is joint instability or abnormal loading and exercise is not workable without them, so we suggest them only when they keep your programme moving.
Hands-on treatment and flare-ups
Manual therapy, such as joint mobilisation and soft tissue techniques, can ease stiffness and pain in the short term and make exercise more comfortable. Ice can calm a warm, puffy knee after a flare-up, while heat often suits stiffness. Our article on ice or heat for injury explains when to use each.
Physio tip: Keep a simple note of what you did the day before a flare-up. Patterns such as a long drive, a new pair of shoes or an extra-long walk often become obvious within a couple of weeks.
How long does knee pain take to improve?
Recovery depends on the cause, how long you have had symptoms and how regularly you exercise. As a rough guide:
- Minor strains and sprains often start improving within a few days to a few weeks with sensible self-care.
- Pain around the kneecap usually responds over several weeks of strengthening and activity changes.
- Tendon problems commonly need three months or more of gradually progressed loading.
- Osteoarthritis is a long-term condition, but the NHS notes it does not necessarily get worse over time and can sometimes gradually improve.
- After an ACL reconstruction or a knee replacement, rehabilitation typically runs over many months, with milestones rather than fixed dates.
Do you need a scan or surgery?
For most knee pain, an X-ray or MRI does not change the treatment plan. Imaging is usually considered when:
- a significant injury suggests a ligament or meniscus tear and surgery is being discussed
- the knee is locked and will not fully straighten
- symptoms are not improving despite a good period of rehabilitation
- there are unusual features or warning signs
Surgery helps some people, such as those with a torn ACL who want to return to pivoting sports or who keep giving way, or those with severe osteoarthritis whose pain has not responded to non-surgical care. NICE advises that arthroscopic washout (lavage) and debridement should not be offered for osteoarthritis. If you are heading for an operation, our post-surgery rehabilitation service supports you from the weeks before surgery to full recovery.
When to seek urgent medical help
Most knee problems are not an emergency, but some symptoms need a doctor before physiotherapy. The NHS advice on knee pain treats these as warning signs:
- A hot, red, swollen knee with a high temperature, or feeling hot, cold or shivery. This can be a sign of a joint infection (septic arthritis) and needs urgent medical assessment the same day.
- You cannot put weight on the leg after an injury, the knee is badly swollen or has changed shape, or you heard a crack. Get urgent care, as this may be a fracture or a dislocated kneecap.
- The knee locks, will not straighten or keeps giving way. Ask for urgent medical advice, as a torn meniscus or ligament may need specialist assessment. Painless clicking on its own is normal.
- Pain, swelling, warmth or redness in your calf, especially after surgery, long-distance travel or a spell of immobility. This can be a sign of a deep vein thrombosis (DVT), a blood clot in the leg, and needs medical advice the same day. Seek emergency care if you also have chest pain or breathlessness.
Book physiotherapy for knee pain at Tylurs com
You do not have to put up with a knee that limits your walks, your sport or your sleep. At Tylurs com, we combine a thorough assessment with a progressive exercise plan, practical advice on activity and weight, and support at every stage. If your problem started on the pitch or the track, our sports injury rehabilitation service takes you from the first sore days back to full training.
Book your knee assessment and leave with a clear plan for your next steps.
This page is for general information and does not replace a personal assessment. If you have severe, sudden or worsening symptoms, seek medical advice promptly.