A bump on the back of the head may be due to physiological factors and disease factors (commonly seen in boils, epidermal cysts, tumors and other diseases), of which physiological factors do not require treatment, while those caused by disease factors need to be combined with the specific disease, selecting medication, surgical treatment and other ways to treat. 1. Physiological factors: Normal human body has a raised structure at the back of the head, the occipital bone, which is a normal physiological and anatomical feature and does not require treatment. 2. Disease factors (1) Boils: the treatment of this disease requires topical antibacterial drugs, such as compound neomycin ointment, gentamycin hydrochloride ointment, etc.; when the effect of local drugs is not good, oral antibacterial drugs, such as levofloxacin, ceftriaxone, etc.; boils in the red and swollen stage can be taken to hot compresses, lasers and other physical therapy means of treatment. (2) Epidermal cysts: if inflammation occurs, topical antimicrobial treatment is needed, such as fusidic acid cream, compound polymyxin B ointment, etc.; if there is no inflammation, surgical treatment is feasible to remove the cysts. (3) Tumor: If it is caused by intracranial tumor, it needs to be treated with reasonable choice of surgical treatment, chemotherapy and radiotherapy according to the substance, nature and staging of the tumor. It is suggested that patients with bags behind the head should judge according to their own situation, if they can’t except that it is caused by diseases, they should go to regular hospital dermatology department in time, follow the doctor’s instructions to make a clear diagnosis, standardize the treatment, and strictly follow the doctor’s instructions when using medicines.