Freud first proposed the existence of hypochondria in a letter to his good friend Dr. Wilhelm Fliess, a German ear, nose, and throat specialist, calling it a variety of chronic anxiety neurosis.
佛洛伊德在一封寫給德國耳鼻喉科醫師兼好友威廉・弗里士的信件手稿裡，首次提及「慮病症」，視其為「慢性焦慮精神官能症」的一種。