The left span bone soreness may have the following several conditions: 1, femoral head necrosis, if long-term cold or excessive weight bearing, may lead to femoral head necrosis, which leads to the left hip bone soreness at the same time, but also accompanied by knee joint soreness and weakness, unable to bear weight, limp and other symptoms, need to immediately consult the orthopedic clinic, after perfecting the relevant examination, as soon as possible surgery. 2, hip arthritis, if the left hip bone is squeezed or strain for a long time, may 3, synovitis, if there is a history of previous trauma, not treated, long-term may cause inflammation of the synovial membrane, inflammation stimulates the peripheral nerve resulting in pain, treatment can be given Fotarim oral pain relief, cefaclor capsules anti-inflammatory. 4, rheumatic diseases, such as rheumatoid arthritis, etc., also may lead to soreness in the left hip bone.