A lump on the tailbone that is also painful can be treated effectively: 1. Patients should first go to an orthopedic department of a secondary or higher hospital for consultation to clarify the nature of the swelling and then targeted treatment; 2. If it is a bony growth and is accompanied by pain, surgery is most likely to be used. The principle of surgery is mainly to remove the part of the growth. If the surgeon deems it necessary, the tailbone will be removed as well, because this structure is a degenerative structure for the body and has no function. 3. For example, if the growth is on the surface of the skin, it can be treated conservatively with medication first. The treatment requires a dermatologist to come to the consultation for a comprehensive treatment. Secondly, if it is an infection, such as a perianal abscess, or a proliferative tumor, such as a lipoma or fibroid, then surgery is required as soon as possible. The principle of surgery is incision and drainage, or direct removal of the painful mass. In any case, it is important that patients with this condition are seen as soon as possible.