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Why does my 7-week-old puppy have a lump on his belly near his groin?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 1 month and 18 days old | 10 lbs

My 7 week old puppy has a lump on his belly right beside his male parts.

4 Answers

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on February 3rd, 2017

This may be a hernia, which can occur in this area of the body (inguinal area). These are common in small puppies. I would recommend taking him in to your vet within the next couple of days to confirm this. Also you have the option of sharing a picture with either myself or another expert via consultation. Other possible causes for a lump is an inflammatory reaction (usually red), abscess (usually warm to the touch and may be painful, caused by trauma), or a seroma (blood filled sac due to trauma).

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5Pet Parents found this answer helpful

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    Answered By Jessica Desrosiers

    Veterinary Technician

    Published on December 14th, 2019

    What you're describing could be a congenital inguinal hernia, which is relatively common in puppies and if needed is usually repaired during spay/neuter procedures. That said, with any new lump or bump, especially if it is growing in size, suddenly appearing, or bothersome, should be checked out by your vet in person to confirm what it is and what the best course of treatment may be.

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    7Pet Parents found this answer helpful

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    Answered By Jenna Beyer, DVM, MBA, cVMA

    Veterinarian, Certified Veterinary Acupuncturist

    Published on August 11th, 2018

    It looks like Scooby may have a small umbilical hernia. I would recommend that you have it checked out by a vet. Some umbilical hernias will close as the puppies get older, but some large ones may need to be closed surgically. It shouldn't cause any discomfort, but if Scooby keeps licking, you may need to cover it with a dog shirt so he doesn't irritate the skin. Here is information on hernias in dogs: https://www.petcoach.co/article/inguinal-umbilical-and-diaphragmatic-hernias-in-dogs/

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    1Pet Parents found this answer helpful

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    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on June 24th, 2017

    If i can see correctly from the picture, your dog seems to have an umbilical hernia, this is a quite common problem and this will need to be repaired surgically eventually, it's usually done at the same time as neutering (around the age of 5-6 months).

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