Types of Knee Pain:
Causes, Symptoms & Treatment

Knee pain is one of the most common musculoskeletal complaints in Malaysia, affecting people of all ages — from young athletes to older adults with arthritis. But “knee pain” is not a single condition. Understanding the type of knee pain you have — where it hurts and what is causing it — is the first step towards the right treatment. This guide breaks down the main types of knee pain by location and by cause.

Knee Pain by Location

Where your knee hurts gives important clues about the underlying problem.

Knee Pain by Cause

Beyond location, knee pain is classified by what is actually damaged or inflamed:

1. Osteoarthritis (OA)

The most common cause of chronic knee pain, especially in adults over 50. The protective cartilage gradually wears down, causing pain, stiffness (worse in the morning), swelling and a grinding sensation. OA usually develops slowly over years.

2. Meniscus Tear

The meniscus is the C-shaped cartilage that cushions the knee. Tears can happen suddenly (twisting injury in sports) or gradually (degeneration with age). Symptoms include pain, swelling, locking, and a catching sensation when bending the knee.

3. Ligament Injuries (ACL, MCL, LCL, PCL)

Ligaments stabilise the knee. The ACL (anterior cruciate ligament) is commonly injured during sports involving sudden stops or direction changes. A ligament injury often causes a “pop”, immediate swelling, and a feeling that the knee will give way.

4. Tendinitis

Inflammation of the tendons around the knee, most often the patellar tendon (“jumper’s knee”). Caused by overuse and repetitive strain. Pain is typically just below the kneecap and worsens with activity.

5. Bursitis

Inflammation of the small fluid-filled sacs (bursae) that cushion the knee. Causes swelling, warmth and tenderness, often from kneeling for long periods or minor repeated trauma.

6. Gout & Inflammatory Arthritis

Gout occurs when uric acid crystals build up in the joint, causing sudden, severe pain, redness and swelling. Rheumatoid arthritis is an autoimmune condition that can also affect the knees with persistent inflammation.

7. Patellofemoral Pain Syndrome

Also called “runner’s knee”, this is pain around or behind the kneecap due to overuse, muscle imbalance, or poor tracking of the kneecap. Common in young, active people and athletes.

Acute vs Chronic Knee Pain

• Acute pain — comes on suddenly, often from an injury (sprain, tear, fracture). Usually accompanied by swelling and difficulty bearing weight.
• Chronic pain — persists for weeks or months, typically from arthritis, tendinitis, or untreated injuries. Tends to fluctuate with activity and weather.

When Should You See a Doctor?

Don’t ignore knee pain if you experience any of the following:

• Significant swelling or warmth around the joint
• Inability to fully straighten or bend the knee
• Locking, catching or a feeling of instability
• A “pop” at the time of injury
• Pain that wakes you from sleep
• Pain lasting more than 2 weeks without improvement

Non-Surgical Treatment Options at Klinik Bustari

The good news: most types of knee pain can be managed effectively without surgery. At Klinik Bustari, Petra Jaya, we offer:

The Knee Reset Programme

For chronic knee pain or osteoarthritis, our Knee Reset Programme combines injection therapy, rehabilitation and weight management for long-term improvement — helping many patients avoid surgery entirely.

Learn more about our Knee Reset Programme, Orthopaedic Services, and read our guide on when to see a doctor for knee pain.