Two Easy Ways to Start Earning Rewards!
Become a member today!
Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
Already a member? Sign in
Become a credit card member today!
Earn 2X Pals Rewards points at Petco
when you use Petco Pay!
APPLY NOW
Learn More About Petco Pay Benefits

Why does my dog have sensitive lumps under her skin on her back?

Updated on September 23rd, 2025

Pet's info: Dog | Boxer | Female | spayed | 7 years and 2 months old | 57 lbs

My 7 year old boxer has developed overnight multiple lumps of varying sizes under the skin, mainly on her back. They are sensitive to touch.

4 Answers

Most Helpful Answer

Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on November 12th, 2017

This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if Georgia is lethargic, take her to the vet in order to get an antihistamine injection.

10Pet Parents found this answer helpful

Related Answers from Veterinarians

Answered By David Elbeze, DVM, MRCVS
Veterinarian
Published on March 10th, 2018
This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your dog is lethargic, take Bain to the vet in order to get an antihistamine injection.
1Pet Parents found this answer helpful
Answered By David Elbeze, DVM, MRCVS
Veterinarian
Published on December 3rd, 2017
This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your dog is lethargic, take her to the vet in order to get an antihistamine injection.
1Pet Parents found this answer helpful
Answered By David Elbeze, DVM, MRCVS
Veterinarian
Published on October 14th, 2017
This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your dog is lethargic, take Opie to the vet in order to get an antihistamine injection.
2Pet Parents found this answer helpful

Smart Picks for Smart Questions

Related Questions

Health & Wellness

My dog has bumps all over her skin. Is it an allergic reaction?

This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your dog is lethargic, take her to the vet in order to get an antihistamine injection.

Updated on September 23rd, 2025

My dog has bumps on her body and legs. Is it an allergic reaction?

This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your Skye is lethargic, take her to the vet in order to get an antihistamine injection.

Updated on September 23rd, 2025

Health & Wellness

Why does my dog have sudden lumps and raised fur? Is it an allergy?

This is most likely a sudden allergic reaction to something and should resolve within 12-24hours. If he becomes distressed or uncomfortable, contact your vet for medications to help - they may also prescribe antihistamines to have at home should it happen again also!

Updated on September 23rd, 2025

Health & Wellness

Lump on 5-month-old boxer puppy's back: bee sting or vaccine reaction?

Hello, thank you for using Petco Pet Education Center, formerly Petcoach! It could be any of those things: a localized vaccine reaction, a reaction to her microchip (if she has one), an insect sting.... no way for me to tell you which. Just call your vet to discuss when you can. Take some photos of the lump so that you can maybe send to them so they can decide if you need to bring her in or try some home treatment first.

Updated on September 23rd, 2025

My dog has bumps, itching, vomiting, and puffy eyes. Is it allergies?

This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling, itchiness or vomiting do not resolve or if your dog is lethargic, take her to the vet in order to get an antihistamine injection.

Updated on September 23rd, 2025

Health & Wellness

My Boxer has large, itchy bumps on his back. What's wrong with him?

Thanks for using Petco Pet Education Center, formerly Petcoach! This is likely due to an allergic reaction. I recommend that you have him evaluated by a veterinarian. If this is confirmed, they would likely start him on anti-histamine medications and steroids which can help with an allergic reaction. Best of luck!

Updated on September 23rd, 2025

My dog has a sudden, movable lump on her back. Should I be worried?

These skin lumps can arise from a few different causes and they are usually not a big concern. The first thing I would check is if Juna has had any vaccines or injections lately. These are often give in the back near the shoulder blades and can sometimes swell a bit. They also sometimes get these from bites or other trauma. In these cases, the lump is just some fluid buildup under the skin. These usually start going down within a couple of weeks. Other causes can be from a blocked gland, fly warble, abscess or a tumor. You can safely wait a week or two to see if it goes away on its own. If it continues to grow of doesn't go down, then it's best to take her into the vet to get it checked out.

Updated on September 23rd, 2025

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share