What Is Paraphimosis?
Paraphimosis is a condition where a dog’s penis extends out of its protective sheath (the prepuce) and cannot slide back in. Once the exposed tissue swells, the opening of the sheath acts like a tight band, cutting off blood flow and making the swelling worse. It is most common in male dogs and occasionally seen in cats.
Why it is urgent
Exposed tissue dries out, swells and can lose its blood supply within hours. Paraphimosis lasting more than a short time needs a vet the same day.
Common Causes
- Mating or sexual arousal, especially in young intact males
- Long hair around the sheath that rolls inward and traps the penis
- A sheath opening that is too small from birth
- Injury, swelling or infection of the penis or sheath
- Weak sheath muscles in older dogs
Signs to Watch For
- Pink or red tissue that stays visible for more than a few minutes
- Swelling that turns dark red, purple or dry
- Constant licking of the area
- Straining or trouble urinating
Treatment
- Cleaning and lubricating the tissue, then gently easing it back, often under sedation
- Cold compresses or sugar solutions to reduce swelling
- Trimming hair around the sheath opening
- Surgery to widen the sheath opening or, rarely, to remove damaged tissue
Neutering may lower the risk in dogs whose episodes are linked to arousal; see dog neutering. Related male conditions include prostatitis and cryptorchidism in dogs.
Paraphimosis vs phimosis
Phimosis is the opposite problem: the sheath opening is so narrow the penis cannot come out at all. Both are treated by a vet, and both can be linked to a small sheath opening.
Frequently Asked Questions
Is it normal for a dog’s penis to show sometimes?
Yes. Brief exposure during excitement is normal and goes back on its own within minutes. It becomes paraphimosis when it stays out and starts to swell.
Can I push it back in at home?
If it has only just happened, gently lubricating it with a water-based lubricant may help. If it does not go back easily, or looks swollen or discolored, go to a vet rather than forcing it.
Can paraphimosis come back?
Yes, especially when a small sheath opening or long hair is the cause. Fixing the underlying cause usually stops repeat episodes.
If your dog’s penis stays exposed and swollen, treat it as urgent. Find a veterinary clinic near you for an exam.