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Updated: May 4, 2026

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Nerve-sparing Mid-urethral Obstruction NeMO in Female Small Rodents
Published on: April 25, 2017
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Urethral obstruction with a copulatory plug following natural breeding in a ruffed lemur, Varecia rubra
Jenifer A Chatfield1, Jerilyn J Chatfield, John A Chatfield
14J Conservation Center, Dade City, FL, USA.
Journal of Medical Primatology
|December 31, 2013
Abstract
Background:
An 18-year old captive male lemur (Varecia rubra) housed in a breeding situation presented for lethargy and anorexia.
Methods And Results:
Physical exam revealed urethral obstruction.
Conclusions:
Urethral plugs secondary to semen collection are common in lemurs. Here, we report the first case of naturally occurring urethral copulatory plug in a ruffed lemur.

