Whether a subcutaneous lipoma needs surgery or not depends on the volume, size and location of the lipoma: a. Since lipomas are benign lesions, if a small lipoma does not cause compression of the surrounding blood vessels and nerves and does not affect the normal activities of the joints, in this case, surgery may not be required. Secondly, if the subcutaneous lipoma is too large and compresses the important nerves and blood vessels around, the patient has symptoms of decreased skin temperature and numbness of the limbs, or if the larger lipoma is close to the joint and affects the normal production activities of the joint. In this case, it is recommended to remove the lipoma as soon as possible to avoid progressive increase in size of the lipoma, which may cause more serious complications. The envelope of the lipoma is completely removed during surgery to avoid recurrence of the lipoma as much as possible.