| umls-concept:C0702166 | skos:definition | CSP: chronic inflammatory disease of the pilosebaceous apparatus marked by an increase in sebum secretions causing lesions most frequently occurring on the face, chest, and back; the inflamed glands may form small pink papules, which sometimes surround comedones so that they have black centers (blackheads), or form pustules or cysts (whiteheads).,NCI: A disorder of the skin in which oil glands and hair glands become inflamed.,MEDLINEPLUS: <p>Acne is a common skin disease that causes pimples. Pimples form when hair follicles under your skin clog up. Most pimples form on the face, neck, back, chest and shoulders. Anyone can get acne, but it is common in teenagers and young adults. It is not serious, but it can cause <a href='http://www.nlm.nih.gov/medlineplus/scars.html'>scars</a>.</p><p>No one knows exactly what causes acne. Hormone changes, such as those during the teenage years and pregnancy, probably play a role. There are many myths about what causes acne. Chocolate and greasy foods are often blamed, but t | lld:umls |
