What is the reason for the pain behind the knee bend

There are many muscles distributed in our limbs, and exercise can make the muscles stronger. However, some people do not feel comfortable when exercising. Why is there pain behind the knee? When the leg muscles have not been exercised for a long time, they will feel sore when doing slightly larger movements, so you should warm up before exercising to allow the muscles and tendons to have a period of adaptation to avoid injuries caused by excessive force.

What causes pain in the hamstring behind the knee?

Soft tissue is one of the more important tissues in the human body, and pain in the hamstrings behind the knee is closely related to soft tissue damage. If these tissues are affected by external forces and become abnormal, it means that these soft tissues are damaged.

After soft tissue injury, you will be able to feel obvious pain, muscle spasms, and functional disorders. Soft tissue injury may also cause a variety of diseases such as vasodilation disorders, nutritional disorders, and ligament relaxation.

What disease may cause pain in the hamstring behind the knee?

1. Fat pad strain

The fat pad fills the gap between the patella, femur and tibia in a triangular shape, increasing joint stability and reducing friction between the patella, patellar ligament, joint capsule and bone joint surface, playing a role in cushioning and lubrication. The symptoms are generally caused by long-term friction, which causes the fat pad to become congested, thickened and inflamed, resulting in limited knee joint movement. The pain in the knee joint is felt when walking, and worsens when the leg is straightened, but is not limited, and is especially pronounced after exertion. Fat pad injuries are more common in people over 30 who do long-distance hiking, mountain climbing, or frequent squats.

2. Osteoarthritis of the knee

The main causes of knee arthritis are excessive load on the knee joint, trauma, and degenerative diseases, which are more common in middle-aged and elderly people. The symptoms include swollen and painful knee joints, pain when going up and down stairs, and sometimes a friction sound when the knee joint moves. Incorrect walking method may cause varus deformity of the knee accompanied by medial pain.

3. Knee ligament injury

When a joint is subjected to external force and produces non-physiological movement, the ligaments are stretched. If the force exceeds the tolerance range of the ligaments, the ligaments are damaged. It generally manifests as swelling and pain on the inner side of the knee joint, which worsens with passive stretching and a noticeable sense of restricted knee joint movement. Avoid strenuous or difficult movements in daily life and exercise. Exercising your muscles can help reduce damage to your ligaments.

These three situations may cause pain behind the knee, but the causes of pain behind the knee are far more than these three diseases. If you experience pain in the hamstrings behind the knee, it is best to go to a regular hospital for examination. Especially for those who often do long-distance hiking or mountaineering and those who like sports.