Generally, there are no lymph nodes in the head because the lymph nodes are the relay stations of lymphatic flow around the lymph nodes. The main areas of predilection in the body are located in the neck, armpits and inguinal region. In clinical practice, if skin swellings are present on the head, the most common diseases include sebaceous cysts and lipomas. In general, lipomas usually present as painless lumps that can persist without infection. In the case of sebaceous cysts, there is a risk of secondary infection, which may manifest as localized redness, swelling, heat, and pain. In clinical practice, the presence of a lump on the scalp, whether it is a sebaceous cyst or a lipoma, usually requires surgery, i.e., complete excision to achieve a cure, and there are almost no visible lymph nodes in the head.