Rhombus of Michaelis

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The upper half of the Rhombus of Michaelis is visible just above the bikini bottom.

The rhombus of Michaelis, also known as the Michaelis-Raute or the quadrilateral of Michaelis, is a rhombus-shaped contour (also referred to as kite-shaped or diamond shaped) that is sometimes visible on the lower human back.[1] The rhombus is defined by the following vertices: Dimples of Venus, the top of the gluteal crease and the lower end of the crease over the spine.[2]

The Rhombus of Michaelis is named after Gustav Adolf Michaelis, a 19th-century German obstetrician.[1][3]


  1. ^ a b Baskett 2019, p. 282.
  2. ^ Schroeder 1878, p. 234.
  3. ^ Radcliffe 1989, p. 80.


  • Baskett, Thomas F. (2019). Eponyms and Names in Obstetrics and Gynaecology. Cambridge: Cambridge University Press. p. 282-283. ISBN 978-1-108-42170-6.
  • Radcliffe, Walter (1989). Milestones in Midwifery. San Francisco: Norman Publishing. p. 79-80. ISBN 9780930405205.
  • Schroeder, Karl Ludwig Ernst (1878). A Manual of midwifery. New York: Dr Appleton and Company. p. 234.

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