In general, a raised bag at the back of the head that hurts a little to touch may be caused by folliculitis, sebaceous cysts, suboccipital lymph node enlargement, etc., which can be treated by applying medication, improving lifestyle habits, surgery, and so on. 1. Folliculitis: hair follicle inflammation is caused by sebaceous gland secretion leading to hair follicle obstruction, patients can apply some local anti-inflammatory ointment, such as mupirocin ointment, erythromycin ointment, etc., the patient should pay attention to keep the scalp clean and hygienic, don’t squeeze the bumpy parts, eat less spicy and stimulating food, quit smoking and drinking. 2. Sebaceous cysts: If the sebaceous glands are blocked and unable to discharge sebum, sebaceous cysts may result. Clinical treatment is mainly through surgery, i.e. direct excision of cysts. If the patient has an inflammatory reaction, it is necessary to apply antibiotics for anti-infection treatment under the guidance of the doctor, such as cefoxitin sodium, penicillin sodium and other antibiotics, and then carry out the cyst removal surgery after the inflammation is under control. 3. Enlarged suboccipital lymph nodes: there are many reasons such as inflammation and tumors that lead to enlarged suboccipital lymph nodes, so patients should consult a doctor in time to determine the primary disease and treat it actively. When the primary disease is effectively treated, the symptoms of suboccipital lymph node swelling will be relieved. The pain at the back of the head may be caused by other reasons. Patients should consult a doctor to determine the cause of the problem and then seek treatment under the doctor’s guidance.