Lumps on the scalp, mainly including scalp hematoma or inflammatory masses and other reasons, the details are as follows: 1, scalp hematoma: caused by trauma, due to the periphery of the scalp is the capitellar tendon membrane, the scalp is a loose connective tissue, and the blood supply is rich, if accidentally traumatized, there may be the formation of scalp hematoma, general use of compression bandages can be healed most of the time; 2, inflammatory masses: including lipoma and sebaceous cysts, both lipoma and sebaceous cysts, so far the exact cause of the occurrence is clear. Inflammatory swelling: including lipoma and sebaceous cyst, whether lipoma or sebaceous cyst, so far the exact cause is not clear, for the lipoma or sebaceous cyst on the scalp, there is no medicine to control its growth and shrinkage or disappearance, the only way to get cured is to remove it through local anesthesia surgery, especially sebaceous cysts, which may be secondary to bacterial infection or even septicemia.