Women with left leg pain need to be alert to lumbar disc herniation, ischemic necrosis of the femoral head, osteoarthritis of the knee and other diseases. Lumbar disc herniation and spinal stenosis will compress the nerves that innervate the left leg of the leg, and symptoms such as left leg soreness and weakness will occur, and in severe cases, significant numbness will also occur. Ischemic necrosis of the femoral head, hip joint effusion in the symptoms of severe, will also appear in the left leg pain and weakness, usually after the activity of the pain significantly worse, after rest will be reduced. Knee osteoarthritis, rheumatoid arthritis and other diseases, when the symptoms are serious, will also appear in the left leg pain symptoms. If a woman’s left leg is sore for reasons other than those mentioned above, it can also be related to cold, excessive exercise, etc., and it is recommended that the patient go to the hospital in time to improve the examination and receive regular treatment.