PMID: 38960Apr 1, 1979

An analysis of 500 cases of equine cryptorchidism

Equine Veterinary Journal
J E CoxP A Neal


The authors analyse data collected over 23 years from 500 cryptorchid horses. They show that left- and right-sided abdominal cases occur with approximately equal frequency in ponies. Approximately half the right-sided unilateral abdominal cases have the epididymal tail descended while only 20 per cent of the left-sided cases do. These findings are briefly discussed. From their analysis of inguinal cryptorchidism the authors conclude that it is a relatively more complex phenomenon with incidence changing with age as well as breed. Right-sided retention predominates in young ponies, probably being an extreme expression of testicular hypoplasia, but in older ponies and in other types of horse, retention occurs equally on the left and right.


Sep 18, 2007·Journal of the American Veterinary Medical Association·John F MarshallH David Moll
Mar 24, 2007·Reproduction : the Official Journal of the Society for the Study of Fertility·R P Amann, D N R Veeramachaneni
Jun 11, 2008·Animal Reproduction Science·John F Edwards
Nov 1, 1986·Equine Veterinary Journal·H M Hayes
May 1, 1989·Equine Veterinary Journal·A H ParksJ A Stick
Oct 8, 2005·Environmental Research·Parvathi K Basrur


Nov 29, 1975·The Veterinary Record·J E CoxP A Neal
Aug 1, 1970·Biology of Reproduction·W C BerginJ R Coffman
Aug 1, 1962·Biulleten' eksperimental'noĭ biologii i meditsiny·V Ia SHEVLIAGIN
Jan 26, 1963·British Medical Journal·H S SINGHA
Nov 1, 1961·Postgraduate Medical Journal·D C McGoon

Related Concepts

Genus equus
Equus caballus
Structure of Inguinal Ring
Sternal Cleft
Unilateral Cryptorchidism
Horse Diseases
Inguinal Region

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