Knee Pain: Common Causes, Self-Care and When to Seek Help

Knee Pain: Common Causes, Self-Care and When to Seek Help

Knee Pain: Common Causes, Self-Care and When to Seek Help

Knee pain can make everyday movement harder. It may affect walking, stairs, squats, running or sport. For active adults, it can also interrupt training and other activities they enjoy.

Knee pain has many possible causes. It may follow a sudden injury, develop after repeated activity or occur with changes in the joint over time. The location, timing and type of pain can offer useful clues, but they cannot confirm the cause on their own.

This guide explains common reasons for knee pain, practical steps that may help and signs that you should seek professional advice.

Important: This article is general information only. It does not diagnose or treat knee pain. Speak with a doctor, physiotherapist or other qualified health professional for advice about your symptoms.

What is the knee?

The knee is a joint where the thigh bone, shin bone and kneecap meet. It also includes cartilage, ligaments, tendons and muscles that help the joint move and stay stable.

The knee handles a large amount of load during walking, running, jumping and lifting. It also works with the hip, ankle and foot. A change in one part of this movement system can affect how the knee feels.

Pain may be felt:

  • At the front of the knee, around the kneecap
  • Along the inside or outside of the joint
  • At the back of the knee
  • Across a larger area of the joint
  • In the knee and nearby areas, such as the thigh or calf

Common causes of knee pain

A sudden strain or sprain

A trip, fall, awkward landing or sudden change in direction can strain soft tissues around the knee. Pain may begin straight away, or become more noticeable over the following hours.

A mild injury may cause soreness, swelling or reduced comfort during movement. More serious injuries can involve marked swelling, instability or difficulty putting weight through the leg.

Repeated activity

Knee pain can build gradually when the joint is exposed to more activity than it is used to. This may happen after increasing running distance, adding hills, changing sports or starting a new exercise programme.

Poor recovery, a sudden change in training and repeated movements can also contribute. The issue is not always the activity itself. It may be the amount, speed or frequency of the activity compared with your current capacity.

Pain around the kneecap

Pain at the front of the knee is common in active people. It may feel worse with stairs, squats, running, jumping or sitting for a long time with the knee bent.

Several factors can contribute to this type of pain, including changes in activity, muscle strength and movement control. A health professional can assess the knee and the way the hip, ankle and foot work with it.

Arthritis-related discomfort

Arthritis can cause pain, stiffness and reduced movement. Symptoms may vary from day to day. Some people notice more discomfort after periods of activity, while others feel stiff after resting.

If you have ongoing knee symptoms or have been diagnosed with arthritis, ask a qualified health professional about suitable exercise and support options.

Weakness or instability

Some people feel that the knee is weak, unsteady or likely to give way. This may happen after an injury or during activities that place more demand on the joint.

A feeling of instability should not be ignored, particularly if it is repeated or affects your confidence when walking or exercising.

What does knee pain feel like?

Knee pain may be described as aching, sharp, burning, sore or stiff. You may also notice:

  • Swelling or warmth
  • Clicking or grinding
  • Reduced range of movement
  • Pain when bending or straightening the knee
  • Difficulty walking or using stairs
  • A feeling that the knee catches, locks or gives way

These symptoms can have different causes. A description of your symptoms helps a health professional decide what to assess, but it is not a substitute for an examination.

What to do when knee pain starts

Reduce the aggravating activity

Temporarily reduce activities that clearly increase your pain. This may mean replacing running with a gentler activity, shortening a walk or avoiding deep squats for a period.

Complete rest is not always needed. If comfortable, gentle movement can help you maintain normal function. Let pain and swelling guide how much you do.

Use cold or heat carefully

A cold pack wrapped in a cloth may feel helpful after a recent injury or when the knee is swollen. Do not place ice directly on your skin, and stop if the skin becomes painful or unusually numb.

Heat may feel soothing for stiffness, but it may not be suitable when the knee is hot or swollen. Ask a health professional or pharmacist if you are unsure which option is appropriate.

Elevate the leg if it is swollen

When resting, placing the leg in a comfortable raised position may help you manage swelling. Avoid positions that create more pain or pressure behind the knee.

Return to activity gradually

As symptoms settle, build back slowly. Start with a lower level of intensity, duration or distance. Increase only when the knee remains comfortable during the activity and afterwards.

A physiotherapist can help you plan a safe return to exercise. They may also suggest strength, mobility and balance exercises suited to your needs.

Exercise and knee pain

Exercise can support general strength and movement, but the right approach depends on the reason for your pain. A new or severe problem should be assessed before you push through it.

Helpful principles include:

  • Warm up with easy movement before harder exercise.
  • Increase training load gradually.
  • Include rest or lighter days in your routine.
  • Stop or modify an exercise that causes sharp or increasing pain.
  • Avoid returning to full sport while the knee is swollen, unstable or difficult to use.
  • Follow an individual programme if a health professional has provided one.

Pain during exercise is not always a sign of serious damage, but worsening pain should be taken seriously. If symptoms continue, arrange an assessment rather than repeatedly testing the knee.

Can a knee support help?

A knee support may provide compression, a feeling of stability or a reminder to move carefully. It should be comfortable and should not replace assessment, rehabilitation or a gradual return to activity.

Choose a support based on the type of help you need and how it fits. Options available from Health Wholesale include:

A support should not feel painfully tight. Remove it and seek advice if you notice increasing pain, numbness, tingling, skin colour changes or unusual swelling. If you have a serious or persistent knee problem, consult a health professional before using a brace or wrap.

When should you see a health professional?

Arrange an assessment if knee pain:

  • Does not improve with sensible activity changes
  • Keeps returning when you resume exercise
  • Limits walking, work, sleep or everyday activities
  • Is associated with repeated giving way, catching or locking
  • Follows a significant injury
  • Is accompanied by ongoing swelling or reduced movement

A doctor or physiotherapist can assess your symptoms, movement and strength. They can also advise whether you need further investigation or a specific rehabilitation plan.

Seek urgent medical care for warning signs

Seek prompt medical care if you:

  • Cannot put weight on the leg
  • Have a visibly deformed knee after an injury
  • Develop severe swelling soon after an injury
  • Have a hot, red knee with fever or feel very unwell
  • Have severe pain that is rapidly worsening
  • Have new numbness, weakness or significant colour change in the leg or foot

These signs can have different causes and need timely assessment.

How to reduce the chance of knee pain

No approach can prevent every knee problem. However, sensible training and recovery habits may reduce avoidable strain:

  • Build up new activities in small steps.
  • Wear comfortable footwear suited to the activity.
  • Vary training when possible rather than repeating one demanding movement every day.
  • Strengthen the muscles used in your chosen activities.
  • Allow time for recovery after hard sessions.
  • Pay attention to early symptoms and adjust before they become more limiting.
  • Ask a professional to review your technique if pain repeatedly returns.

Your training plan should suit your age, health, experience and goals. A qualified exercise professional or physiotherapist can help you make appropriate changes.

The key points

Knee pain can result from an injury, repeated activity, weakness, arthritis or other causes. The best response depends on the symptoms and what led to them.

Reduce activities that aggravate the knee, keep comfortable movement where possible and return to exercise gradually. A knee wrap or brace may offer compression or support for some people, but it should be comfortable and used alongside appropriate care.

Get professional advice when pain persists, repeatedly returns or affects normal function. Seek urgent help for severe pain, major swelling, deformity, fever, inability to bear weight or new changes in sensation or circulation.

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