Multiple sebaceous cysts are multiple sebaceous cysts, the cause of which is mainly related to the blockage of sebaceous ducts, while poor skin hygiene as well as bacterial infections are the main predisposing factors. In terms of treatment, it is mainly removed by surgery and laser treatment. 1. Sebaceous duct blockage. Sebaceous cysts, also known as comedones, are retention cysts formed when sebum secretions cannot be discharged normally due to the blockage of sebaceous ducts. 2. Poor hygiene. If the dirt or oil secretions accumulated on the skin surface are not discharged in time, the sebaceous ducts will be easily blocked, which can also indirectly cause multiple sebaceous cysts. 3. Bacterial infection. Repeated bacterial infections of the local skin will affect the physiological function of the local skin, and even lead to abnormal sebaceous gland ducts and blockage. Treatment of multiple sebaceous cysts includes surgery and laser treatment. The surgical methods include surgical incision and peeling as well as small incisions to clean the walls of the cysts. For sebaceous cysts with signs of infection, a combination of anti-inflammatory drugs, such as topical mupirocin ointment and oral roxithromycin capsules, is required under the supervision of a doctor. It is recommended that patients go to the dermatology department of the hospital for consultation and standardized treatment under the guidance of the doctor, and do not self-medicate.