The pain in the left hip may be caused by the following reasons: 1. Various acute and chronic injuries to the hip, when the hip is attacked by injury, it will lead to local inflammatory reactions, thus triggering pain in the left hip. For example, the more common sharp and blunt force injuries to the hip, including falls to the hip, can lead to hip pain. 2, the left hip pain may also be caused by lumbar disc herniation, when the lower position of the lumbar disc herniation, it can lead to the nerve roots responsible for the hip injury, resulting in pain symptoms. 3, the left hip pain, there may also be left Sciatica, as well as gluteal myofasciitis and other diseases lead to.