A raised bump on the head may be related to folliculitis, common warts, seborrheic keratosis, etc. Depending on the cause of the problem, it can be treated with medication (applying fusidic acid cream, etc.), physical therapy (cryotherapy, etc.), or surgical treatment (surgery, etc.). 1. Folliculitis: Bacterial infection of the hair follicles may cause redness, swelling and bulging of the hair follicles. It can be treated by applying fusidic acid cream or mupirocin ointment as prescribed by the doctor. 2. Common warts: caused by human papilloma virus infection, may grow in the head, usually no pain and itching. They can be treated with laser therapy, cryotherapy and other physical treatments. 3. Seborrheic keratosis: it may be related to sun exposure, chronic inflammation stimulation, etc. It is a common benign epidermal hyperplastic tumor, which is rough to the touch, and can be manifested as papillomas or hyperplastic bumps. Seborrheic keratosis generally does not require treatment, and when it affects the aesthetics, it can be treated with physical therapy such as laser, freezing or surgical excision. It is recommended that the patient should consult a doctor in time to clarify the cause of the bump on the head and follow the doctor’s instructions for treatment.