Sippel records an instance of third ovary; Mangiagalli has found a supernumerary ovary in the body of a still-born child, situated to the inner side of the normal organ.

Winckel discovered a large supernumerary ovary connected to the uterus by its own ovarian ligament.

Klebs found two ovaries on one side, both consisting of true ovarian tissue, and connected by a band 3/5 inch long.
Doran divides supernumerary ovaries into three classes:-- (1) The ovarium succentauriatum of Beigel.
(2) Those cases in which two masses of ovarian tissue are separated by ligamentous bands.
(3) Entirely separate organs, as in Winckel's case.
Prolapsus or displacement of the ovaries into the culdesac of Douglas, the vaginal wall, or into the rectum can be readily ascertained by the resulting sense of nausea, particularly in defecation or in coitus.
Munde, Barnes, Lentz, Madden, and Heywood Smith report instances, and Cloquet describes an instance of inguinal hernia of the ovary in which the uterus as well as the Fallopian tube were found in the inguinal canal.

Debierre mentions that Puech has gathered 88 instances of inguinal hernia of the ovary and 14 of the crural type, and also adds that Otte cites the only instance in which crural ovarian hernia has been found on both sides.

Such a condition with other associate malformations of the genitalia might easily be mistaken for an instance of hermaphroditic testicles.
The Fallopian tubes are rarely absent on either side, although Blasius reports an instance of deficient oviducts.