A growth on the back of the head can be treated by hanging up with the neurosurgery department at the hospital. A bag on the back of the head may be related to hematoma, tumor and so on. It is recommended that the patient complete the relevant examinations in time to clarify the cause of the disease. A bag on the back of the head can be treated in the neurosurgery department of the hospital. Neurosurgery is a department that mainly treats brain, spinal cord, peripheral nervous system, skull, scalp and other brain lesions. After the consultation, the patient should cooperate with the doctor to complete X-ray, ultrasound, CT, MRI, blood routine, tumor markers and other tests to help the doctor to clarify the cause of the disease, so as to make a diagnosis. Buns on the back of the head are commonly associated with hematoma, tumor and other diseases. Hematoma may be caused by trauma to the back of the head, and tumors may be related to malignant tumors, fibrous tumors, lipomas and so on. It is recommended that the patient go to the hospital in time to clarify the cause of the disease and treat the cause.