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Rabbits/Lump between eye and ear on Bunny


I have a 3 year Holland Lop who has developed a hard lump about the size of a marble between her ear and eye just recently spent alot of $ on a sick cat. Wondering, how serious this could be and if going to have a bad outcome anyway if I should just monitor it. She doesn't seem to mind if I touch it and is still running, eating, letting me hold her and acting like her usual self.

Any input appreciated. Thanks

Dear Kathy,

While I can't diagnose this over the internet with any confidence because I can't see and feel it, the location of this lump suggests that it's a molar root abscess.  Holland Lops are notorious for dental problems, due to their short faces that lack sufficient room for normal molar spacing, and they tend to develop problems as they age.

This is not something you want to ignore, as it can become worse and as difficult to treat as a cancerous tumor.  If you start treatment while it's relatively small (like now), there is a much better chance for full resolution of the lesion.

We have found that dual-acting Penicillin G Procaine/Benzathine injections every 48 hours (subcutaneous only, never intramuscular or IV!  And no oral penicillins for a rabbit, EVER!) can be extremely effective at killing the most common pathogens causing dental abscesses in rabbits.
It is very inexpensive, but the vet will have to show you how to use it (if s/he is willing to do so).

Please find a rabbit-savvy vet here:

who can examine your bunny, detemine the exact nature of the problem, and prescribe appropriate treatment.  But don't let this go.  It will only become worse.

I hope this helps.



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Dana Krempels, Ph.D.


I've lived with companion rabbits for more than 35 years, and consider them members of my family. I can answer any questions about the biology and health of rabbits, from the commonplace to the unusual. But please note:

RULE #1:

Find a rabbit vet at for immediate help, and don't risk your bunny's life by spending time asking questions online! If you can't get in touch with your vet, read these Emergency Sick Bunny Instructions.

If you have found a wild baby rabbit, please read these EMERGENCY INSTRUCTIONS FOR WILD BABY RABBITS and then use this link to FIND A LOCAL WILDLIFE REHABILITATOR who can give you the right advice.

RULE #2:
Help me help you! Please make your subject line informative if you have an urgent question. then LET ME KNOW IN THE SUBJECT LINE so I can give your question highest priority over non-urgent questions. If you don't do this, then I can't guarantee timely assistance!

For all the best, most accurate rabbit health, care and behavior information, visit The House Rabbit Society.


I have been rescuing and rehabilitating domestic and wild rabbits for about 30 years. I have written articles for many rabbit rescue publications, as well as for the veterinary journal, Exotic DVM. I own EtherBun, the internet's largest listserve dedicated to health, care, and behavior of domestic rabbits.

Houserabbit Adoption, Rescue, and Education, Inc. (H.A.R.E., Inc.) president National House Rabbit Society (Board member)

Exotic DVM
Warren Peace (Journal of the House Rabbit Society of Miami)
Various newsletters of the House Rabbit Society, nationwide

Ph.D - Biology
B.S. - Biology
B.A. - English

Awards and Honors
Lightspan Academic Excellence Award for web site on rabbit health and biology

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