Petco Text Logo
Petco Pet Logo

My rabbit has a lump under her tail but seems healthy. What's wrong?

Updated On September 23rd, 2025

Pet's info: Small Animal | Rabbit | Female | unspayed | 7 lbs

My rabbit is a mini lop ear, she has a large growth on her butt under her tail. She looks healthy and is eating and drinking water just fine. What's wrong?

4 Answers

Most Helpful Answer

Image profile

Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on April 27th, 2017

This kind of lump/growth needs to be ideally assessed by your veterinarian to have a definitive and specific answer. Usually there are two ways your vet can do that a part from examining it directly during physical examination. A biopsy can be taken under local or general anesthetic, otherwise a smaller sample through a fine needle can be aspirated (this technique is called FNA= fine needle aspiration). Differentials include skin cysts, infections, benign or more sinister type of tumors. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

Vote icon

1Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Published on October 30th, 2018

    Hi, and thanks for your question. Although a picture of it would help to determine the underlying nature of the problem, this kind of lump/growth needs to be ideally assessed by your veterinarian to have a definitive and specific answer. Usually there are two ways your vet can do that a part from examining it directly during physical examination. A biopsy can be taken under local or general anesthetic, otherwise a smaller sample through a fine needle can be aspirated (this technique is called FNA= fine needle aspiration). Differentials include skin cysts, infections, benign or more sinister type of tumors. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

    Vote icon

    1Pet Parents found this answer helpful

  • Image profile

    Answered By Angel Alvarado, LVT

    Licensed Veterinary Technician

    Published on May 9th, 2018

    Keep the area clean and dry. Consider an exam with your veterinarian or a vet experienced in treating rabbits to diagnose and treat infection or injury. A fine needle aspirate can be done in the clinic to collect samples for pathology to diagnose a malignancy.

    Vote icon

    1Pet Parents found this answer helpful

  • Image profile

    Answered By Angel Alvarado, LVT

    Licensed Veterinary Technician

    Published on December 8th, 2016

    You can monitor this lump on Pumpkin for any rapid growth or change. See your vet if necessary for an exam. A fine needle aspirate may be enough to determine what the lump's nature. This can be done in the clinic and the sample can be submitted for pathology.

    Vote icon

    1Pet Parents found this answer helpful

See More Answers
image
Have A Vet Question?

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

Sponsored