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My betta fish has a swollen rear end. Is it bloated or sick?

Updated On September 23rd, 2025

Pet's info: Fish | Betta

Is my betta fish bloated? The rear end of its body is swollen.

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1 Answer

Most Helpful Answer

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

Veterinarian

Published on January 3rd, 2020

This is difficult to determine exactly from the picture you posted. There seems to be a mild swelling which could be completely normal at this stage (especially if not other signs are present). Please complete your question adding other pictures (one from above would be quite helpful) and describing if other signs are present or not to receive more answers from us.

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