Key Takeaways
- Knee pain has many causes – age-related wear, injuries, inflammation and infection.
- Osteoarthritis is the most common cause in people over 50.
- Swelling after a twist, locking or giving way suggests a ligament or meniscus injury.
- A hot, red, swollen knee with fever needs urgent medical care.
- Early diagnosis often means simpler treatment and a better outcome.
Almost everyone gets knee pain at some point – but pain that keeps returning, wakes you at night or follows an injury deserves attention. Here are seven common causes of knee pain, how to recognise them and when to see a specialist.
7 Common Causes of Knee Pain
1. Osteoarthritis (Wear and Tear)
The most common cause of knee pain after 50. The smooth cartilage cushioning the joint slowly wears away, causing pain on walking and climbing stairs, morning stiffness and sometimes a grating sound. It may slowly bend the knee. Learn more about osteoarthritis treatment.
2. Ligament Injury
A sudden twist during sports, a fall or an accident can tear knee ligaments such as the ACL. Patients often feel a “pop”, followed by swelling and a feeling that the knee is giving way. See sports injury treatment.
3. Meniscus Tear
The meniscus is a C-shaped cushion inside the knee. It can tear with twisting injuries in young people or with age-related wear in older adults. Typical signs are pain on the inner or outer side of the knee, swelling, catching or locking.
4. Rheumatoid Arthritis and Other Inflammatory Arthritis
In rheumatoid arthritis, the body’s immune system attacks the joint lining. It often affects both knees along with the hands and feet, with morning stiffness lasting more than 30 minutes.
5. Gout
Uric acid crystals can suddenly inflame the knee, making it hot, red, swollen and extremely painful, often overnight. Diet, alcohol and some medicines can trigger attacks – see gout treatment.
6. Tendinitis and Bursitis
Overuse from kneeling, climbing or running can inflame the tendons or the small fluid sacs (bursae) around the knee. Pain is usually felt at the front of the knee and worsens with activity.
7. Old Injury or Fracture
A past fracture or ligament injury can damage the joint surface and lead to arthritis years later – called post-traumatic arthritis.
Warning Signs: See a Doctor Soon
- Knee that is hot, red and swollen, especially with fever – may be infection
- Unable to bear weight or walk after an injury
- Knee locking, catching or giving way
- Pain that wakes you at night or is present at rest – see knee pain at night
- Visible deformity – bow legs or knock knees getting worse
- Pain lasting more than 2–3 weeks despite rest
How Is Knee Pain Diagnosed?
A knee specialist examines the joint and checks movement, stability and swelling. Depending on the cause, X-rays, MRI, blood tests (for uric acid or rheumatoid factor) or fluid testing may be advised.
Treatment Options
- Weight control, activity changes and strengthening exercises
- Medicines and physiotherapy for arthritis
- Knee injections in selected patients
- Arthroscopy for certain ligament or meniscus injuries, as advised
- Knee replacement for advanced arthritis
Why Choose Pluto Hospital, Himatnagar
At Pluto Super Speciality Hospital, joint care is led by Dr. Keval Patel, MBBS, DNB (Orthopaedics), Robotic Joint Replacement Surgeon. Patients get North Gujarat’s first MISSO robotic system, Class 100 operation theatres, a 12-bed ICU for safety, in-house physiotherapy from day one and cashless insurance support – all close to home in Himatnagar.
Conclusion
Knee pain is common, but it is not something you simply have to live with. Identifying the cause early – whether arthritis, a torn ligament or gout – usually means simpler treatment and better results. If your knee pain keeps coming back, follows an injury or limits your walking, see an orthopaedic specialist.
Is knee pain slowing you down?
Get your knee examined by Dr. Keval Patel at Pluto Hospital, Himatnagar.
Frequently Asked Questions
What is the most common cause of knee pain?
In people over 50, osteoarthritis (wear and tear of the cartilage) is the most common cause. In younger, active people, ligament and meniscus injuries are common.
When should I worry about knee pain?
See a doctor if the knee is hot, red and swollen, you cannot bear weight, it locks or gives way, the pain wakes you at night, or it lasts more than 2–3 weeks.
Is walking good for knee pain?
For arthritis, regular gentle walking helps keep the knee flexible and strong. After an acute injury, rest and get the knee checked before resuming activity.
Can knee pain be cured without surgery?
Many causes improve with weight control, exercises, physiotherapy, medicines and injections. Surgery is needed only for certain injuries or advanced arthritis.
Which test is best for knee pain?
An X-ray shows arthritis and bone problems; an MRI shows ligaments, meniscus and cartilage. Your doctor will advise the right test after examination.