Bumps on the skin may be caused due to boils, hives, lipomas and other reasons. They can be removed by medication, surgery, physical and other treatments. 1. Boil: It is caused by infection of pathogenic bacteria such as Staphylococcus aureus and Streptococcus, and localized red, swollen, hot and painful bumps may appear. In the early stage, patients without pus can use topical ichthyol ointment, tincture of iodine, mupirocin ointment and other medicines for antibacterial treatment and symptomatic relief. In the late stage of boils that have suppurated and broken down, surgical incision can be considered. 2. Urticaria: It is stimulated by various foods, drugs or other factors leading to temporary dilation of small blood vessels in the skin and mucous membrane and increased permeability, localized edema occurs, and thus the bumps can appear. Antihistamines, such as loratadine and ebastine, can be used to relieve hives caused by allergies. For patients with chronic urticaria and skin scratches, special light irradiation therapy can be used in conjunction with antihistamine treatment to provide anti-inflammatory and anti-edema effects. 3. Lipoma: It is a common benign tumor of soft tissue, which is a tumor of normal fat-like tissue. The occurrence of its disease may be related to heredity and abnormal fat metabolism. Lipoma can be removed by surgery. Superficial lipoma surgery is simple and easy to remove completely, deep lipoma is sometimes more difficult to remove completely. In addition, patients with lumps on the skin may also have other diseases, it is recommended to go to the hospital in time and follow the doctor’s instructions for treatment to avoid delaying the condition.