Johann Georg Klees

Johann Georg Klees was a German physician and medical author who lived from 1770 to 1849. Confirmed records from library and catalog sources link his name to medical publications in German and Latin, including a 1792 dissertation on instruments used in difficult childbirth and later works on women’s health.

He is best known today for Über die weiblichen Brüste, a book published in the early nineteenth century and preserved by collections such as the Medical Heritage Library and Project Gutenberg. The work focuses on the anatomy, function, and care of women’s breasts, placing him among writers who tried to make medical knowledge more accessible beyond strictly academic audiences.

Only limited biographical detail was easy to confirm from reliable public sources, so much of his personal life remains unclear here. What does come through is a picture of a doctor whose published work centered on practical medicine, especially obstetrics and women’s health, and whose books have remained traceable through major historical and medical libraries.