Ms. left rib bulge may be caused by superficial lipoma, costochondritis, rib fracture, etc. According to different causes, different treatments will be taken: general treatment, medication, surgery and so on. 1. Superficial lipoma: it is a kind of common benign tumor of soft tissue, one or more subcutaneous confined lumps can be seen, so there is a bulge under the left rib cage. When the superficial lipoma is relatively small, surgery is usually not needed; when the superficial lipoma is relatively large and compresses nerves, blood vessels and organs, it can be treated by lumpectomy surgery. 2. Costochondritis: in addition to a bulge under the left side of ribs, patients with costochondritis will also be accompanied by intercostal pain, redness and swelling of the skin, and the symptoms will be aggravated when exercising. It is recommended to take localized hot compresses, infrared irradiation, medium frequency pulse and other physical therapy to help relieve the condition. If the acute attack can take non-steroidal drugs, such as ibuprofen extended-release capsules. 3. Rib fracture: If a rib fracture caused by recent trauma leads to bleeding, it can also lead to a bulge under the left rib with pain symptoms. Rib fracture should be timely to the hospital for a detailed examination, if the simple rib fracture, the doctor will carry out manipulation after the use of chest strap external fixation, to ensure the relative stability of the fracture end, to promote the healing of the fracture. Women’s left rib bulge may also have other reasons, should be timely to improve the relevant examination, by the specialist doctor to determine the specific causes of treatment, should avoid blind self-medication.