Endometriosis: Provides definition, symptoms, causes, diagnosis, and treatment. Includes glossary.Endometriosis: Read this article to learn all about endometriosis and how doctors help girls who have it.Endometriosis: Discusses what it is, how it is diagnosed, and treatments. Includes how long treatment lasts and surgery.Teenage Endometriosis Network: Explains what it is, the symptoms, diagnosis, treatments, and tips for coping with the pain.