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My male dog's penis is swollen with lumps. Normal or vet visit?

Updated On September 23rd, 2025

Pet's info: Dog | Yorkshire Terrier | Male | unneutered | 7 lbs

Yorkie has swollen penis and looks like he has 2 lumps between penis and testicles. Can I do something or do I need to take to vet

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on January 8th, 2017

If it is at the base of the penis, it is likely Thor's bulbus glandis (aka the knot). It is normal and used to create the tie during mating. If the penis does not retract into the sheath after the swelling subsides or if it stays erect, then Thor needs to be seen by a vet as this is an emergency.

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