Hello! Subcutaneous cyst refers to a pathological structure that occurs in the dermis or under the skin, has a cyst cavity structure, has a cyst wall outside, and contains liquid or other components inside. It occurs in young people of any age, especially in the head, face, arms and back. Subcutaneous cyst surgery is generally mild, and outpatient surgery is enough. First, control the infection, and then operate. There is generally no need to be hospitalized unless the skin lesions are too large. I wish you the best of health!