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Ask the Veterinarian/Small black bumps on penis

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Expert: - 8/27/2011


Question

I have a male schnauzer, 5 yrs old.  Two weeks ago I noticed about 4 small black bumps on the skin of my dog's penis.  If I rubbed them a little with a washcloth they came off like a scab.  He also had a little pus coming out of some of them.  I took him to the vet and she said it looked like an allergic reaction to a plant or something he touched (perhaps while peeing). She gave me some antiseptic spray to put on the area.   

There are 3 other dogs in the property and while giving another male a haircut today I noticed a similar small black bump on his penis.  I re-examined my dog and he still has one small lump, looks kind of like a skin-colored mole.  

I'm worried that there could be a venereal disease going around or something of the sort.  What could these lumps be?  Anything I could look out for that would indicate a tumor or VD?  Thanks for your time.

Answer
I seriously doubt that there is any type of venereal disease going on.  There are a lot of glands around the prepuce that may be secreting causing blackheads or they may have been somewhere outside where there was something sharp or prickly to affect the sheath.

Dr. Louis N. Gotthelf

Expertise

Dermatology and ear diseases of dogs and cats

Experience

I am the author of "Small Animal Ear Diseases; An Illustrated Guide" published by W.B. Saunders. I have over 25 years of clinical experience with a special interest in dermatologic conditions and ear diseases.

Organizations
American Academy of Veterinary Dermatology

Publications
Veterinary Forum
Veterinary Medicine
Waltham Focus

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