Female left hip pain, common left hip sprain, left femoral head necrosis and other causes, as follows: 1, left hip sprain: in the process of exercise, due to the lack of muscle strength around the female hip joint, easy to occur hip sprain. Patients will have left hip pain, limited activity, accompanied by local swelling, walking difficulties, through cold compress treatment and hip weight bearing, generally 1-2 weeks symptoms can disappear completely. 2, left femoral head necrosis: older women who use hormonal drugs for a long time for treatment, will lead to aseptic necrosis of the left femoral head, patients will have left hip pain symptoms. Initially, it is vague pain with intermittent episodes, and gradually develops into continuous and aggravated hip pain, accompanied by limited hip flexion activities, limited medial and lateral rotation activities, and even shortened and deformed limbs. The diagnosis can be confirmed by X-ray and MRI, and early treatment can enable the patient to return to normal life as soon as possible.