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My iguana's chin is big and inflamed. Is it normal or a health issue?

Updated On September 23rd, 2025

Pet's info: Reptile | Iguana | Male

My iguana suddenly grew a big under chin. It looks inflammated but I don’t know if its normal as he is getting older. He is about 2 years old

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1 Answer

Most Helpful Answer

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Answered By Todd Cecil

Veterinarian

Published on December 9th, 2018

Thanks for reaching out about Chispi and including a photo. This appears to be mandibular hypertrophy, likely a result of calcium deficiency, termed metabolic bone disease. A veterinary visit should be scheduled to determine other concerns such as bowed bones, etc. Dietary/vitamin D deficiencies, preferred optimal thermal zone and exposure to ultraviolet radiation, all need to be investigated. This is a serious and possible fatal problem and should be corrected soon. Good luck.

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