title: Amenorrhea.
abstract: The evaluation of amenorrhea requires a careful history and physical examination and a systematic, stepwise approach. Pregnancy must be excluded. One or more of the following will help establish the diagnosis: prolactin, T4, lateral skull x-ray or tomograms of the sella, FSH, LH, urinary 17-ketosteroids and 17-hydroxysteroids, bone age, buccal smear for Barr bodies, karyotype and the presence of withdrawal bleeding after a course of progesterone alone or cyclic estrogen plus progesterone.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000568:Amenorrhea / Q000175:diagnosis* / Q000209:etiology; D013734:Androgen-Insensitivity Syndrome / Q000150:complications; D002648:Child; D004700:Endocrine System Diseases / Q000150:complications; D005260:Female; D005831:Genital Diseases, Female / Q000150:complications; D006801:Humans; D007774:Lactation; D008572:Menarche; D008593:Menopause; D011247:Pregnancy; D014424:Turner Syndrome / Q000150:complications; D014599:Uterus / Q000002:abnormalities; D014621:Vagina / Q000002:abnormalities