5 Common causes of knee pain

1. Injury

Tears in ligaments and tendons

Severe knee pain can be caused by injuries such as when playing football or tennis, or it can be injuries at home, work, or accidents, which cause tears in ligaments and tendons. Ligaments connect bones to joints, whereas tendons connect bones to muscles.

If your ligament and tendon tear occurs in the side or edge of your knee, it will hurt even when you are not doing anything. It gets worse when the knee is put under pressure or weight. There may also be swelling, burning, and even bruising of the knee, and you will find it difficult to control and stabilize the knee.

Bleeding inside the knee

Injuries can damage the bones and joints in the knee, causing fracturing and bleeding to radiate to the joint. You will feel heat, stiffness, swelling, and bruising on the knee. Immediately see a doctor if your knee feels more painful and the swelling gets bigger.

Fracture

When the kneecap or other bone in your knee breaks, it can cause unbearable pain in the knee. Sometimes, the fragments of this broken bone can damage the joints and soft tissue in the knee.

2. Arthritis

Rheumatism

Rheumatoid arthritis or rheumatoid arthritis is a disease that affects the joints and other tissues in the knee, causing inflammation. Rheumatism is an autoimmune disease that occurs when your immune system attacks tissues in your body that are actually harmless. Symptoms are pain, stiffness, heat, and swelling of the joints.

This disease can also limit your movement and can even result in chest pain.

Osteoarthritis

Osteoarthritis is the most common degenerative disease of the joints. Cartilage or cartilage is a network of collagen. Located between the bones of your knee, its function is to absorb impacts and shocks.

Gradually, the cartilage can be damaged and no longer absorbs properly. This causes the bones of your knee to rub together, resulting in pain, stiffness, and swelling. Even until a bone grows (bone spur) in sore joints.

Lupus

Like rheumatism, lupus is also an autoimmune disease that occurs when your immune system attacks your own body. Lupus affects not only the knees, but also the skin, brain, kidneys and other parts of the body. Apart from the pain in the knee, you may also feel pain in the chest and have difficulty breathing normally. Other symptoms are fever, feeling unwell, and a sore mouth.

Uric acid

When your body stores too much uric acid, it can trigger inflammation in your joints which will then form crystals. Inflammation usually starts in certain joints in the knee, then spreads to other joints.

3. Baker cyst

If fluid builds up behind your knee, Baker cyst disease can develop. A baker's cyst usually causes only discomfort, not pain. However, if the cyst opens, you can feel excruciating pain accompanied by swelling and bruising.

4. Osgood-Schlatter

Osgood-Schlatter disease is caused by an injury to the knee when the knee is not fully developed. Patients usually feel pain, swelling, and irritation. If you play football, volleyball or basketball a lot, you are at risk for this problem.

5. Infection

Bone infection

An infection that often occurs in bones is osteomyelitis, which can be caused by bacteria or fungi. You can feel pain in the knee bones and other tissues, sometimes accompanied by fever and chills, and a burning sensation and swelling in the knee.

Infection of the joints

Septic arthritis is a condition that occurs when bacteria or fungi land on your joints as a result of injury or surgery. The pain you feel can be quite severe, accompanied by swelling, redness, to fever. This is the most common type of acute arthritis.