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Reptile scale rot (ulcerative dermatitis) — excessive humidity and unhygienic moist bedding in snakes and lizards

exotic_tox_reptile_scalerot

exotic-pet-toxicology 224 tok en 2026-08-27

Reptile scale rot (ulcerative dermatitis) — excessive humidity and unhygienic moist bedding in snakes and lizards

Source: Merck Veterinary Manual (merckvetmanual.com), a copyrighted veterinary reference. Per COPYRIGHT_POLICY §3, the points below are paraphrased derived fact summaries: numerical values and proper nouns are preserved from the source, but sentences are rewritten and not quoted verbatim.

Claims

  • *[Paraphrased derived summary — non-Open-Access source.]* Scale rot — ulcerative dermatitis — is seen in snakes and lizards whose enclosures are unhygienic and excessively humid or wet.
  • *[Paraphrased derived summary — non-Open-Access source.]* Damp, dirty bedding fosters bacterial and fungal growth; combined with fecal degradation products and skin injury from improper floor heating, this can produce small cutaneous erosions in snakes and lizards.
  • *[Paraphrased derived summary — non-Open-Access source.]* If untreated, secondary infection by Aeromonas spp, Pseudomonas spp, or various other bacteria can progress to septicemia and death.
  • *[Paraphrased derived summary — non-Open-Access source.]* More broadly, humidity that is too high or too low can create serious problems for reptiles, and the importance of humidity has historically been underappreciated.

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License & attribution

Source: Merck Veterinary Manual (merckvetmanual.com) is © Merck & Co., Inc. and not openly licensed. Per COPYRIGHT_POLICY §3, every claim above is a paraphrased derived fact summary (numbers and proper nouns preserved, sentences rewritten), not a verbatim quotation.

  • https://www.merckvetmanual.com/exotic-and-laboratory-animals/reptiles/bacterial-diseases-of-reptiles

Sources

Reptile scale rot (ulcerative dermatitis) — excessive humidity and unhygienic moist bedding in snakes and lizards
Source document: Merck Veterinary Manual (professional veterinary reference)
Merck Veterinary Manualretrieved 2026-08-17

Verification file: pdf-raw/exotic-toxicology/merck_reptiles.html