Hildegard of Bingen (1098-1179), an important figure in her own time, has come increasingly to critical attention in recent years. Cause et Cure, attributed to Hildegard, is both a cosmological text and a medical handbook; it is a densely layered work woven together from diverse threads. It begins with a chapter on cosmology which leads to consideration of the human being as a small-scale copy of the universe. From here the focus shifts to the diseases and disorders which afflict human beings. The sections on treatment which follow provide information on medieval pharmacology and herbal healing. The text discusses the differences between male and female, human sexuality, embryology, sleep and dreams, signs predicting death or survival, astrological influences.The Introduction sketches Hildegard"s life and career, and describes the cultural context with emphasis on medieval medicine. The Interpretive Essay discusses the selections presented in translation and alerts the reader to the benefits as well as the limits of medieval health care.