What causes pain from a tendon on the inner side of the thigh?

Pain in a tendon on the inner side of the thigh may be caused by factors such as sports injuries, poor posture, muscle strain, lumbar disc herniation, or avascular necrosis of the femoral head. It is recommended to seek medical attention at a hospital to determine the exact cause and receive appropriate treatment.

1. Sports injury: Sudden forceful movements or excessive range of motion during activities like running or kicking can strain soft tissues such as muscles and ligaments on the inner thigh, leading to tendon pain. Immediately stop exercising after injury; apply cold compresses to reduce pain and swelling. After 72 hours, switch to heat therapy to promote blood circulation.

2. Poor posture: Prolonged sitting, standing, or incorrect walking posture can keep the inner thigh muscles in a constant state of tension, resulting in pain. Maintain proper sitting, standing, and walking postures. Regularly stand up and move around, and perform moderate leg-relaxation exercises such as toe raises and leg swings.

3. Muscle strain: Excessive leg activity, high-intensity exercise, or prolonged static positioning of the legs can lead to sustained muscle tension, causing aseptic inflammation and muscle strain, which results in this condition. It is recommended to undergo treatments such as ultrasound or infrared therapy under medical guidance to improve blood circulation and relieve symptoms.

4. Lumbar disc herniation: This condition is usually caused by strain on the lower back or degenerative changes in the intervertebral discs. It primarily causes radiating pain that spreads from the lower back to the buttocks and the posterior-lateral aspects of the thigh, leading to this symptom. More rest is advised, and symptoms can be alleviated with acupuncture, traction, or other methods under a doctor's guidance.

5. Avascular necrosis of the femoral head: When blood supply to the femoral head is interrupted or damaged, bone cells and bone marrow components die, leading to avascular necrosis. This causes structural changes and collapse of the femoral head, resulting in pain along a tendon on the inner thigh, often accompanied by pain in the hip and buttock areas. Under medical supervision, take medications such as ibuprofen sustained-release capsules or naproxen tablets to reduce pain and swelling.

In daily life, pay attention to local care, avoid strenuous exercise as much as possible, and gently massage or apply heat to the legs to promote recovery.