What causes pain inside the left hip bone?

Possible causes of pain inside the left hip bone include: 1. Trauma or strain: External impacts, overuse, or excessive activity may lead to muscle strain or injury in the hip and thigh area. Injuries from falls from height or traffic accidents can also cause pain inside the left hip. 2. Joint diseases: Conditions such as hip arthritis or avascular necrosis of the femoral head may restrict hip joint function and cause pain. 3. Lumbar spine problems: Lumbar disc herniation may compress spinal nerves, leading to pain on the inner side of the left hip. 4. Sciatica: When the sciatic nerve is compressed or injured, pain may radiate from the lower back or buttocks to the inner hip region. 5. Tumors: Primary or metastatic bone tumors may destroy local bone tissue and cause pain.