I have noticed that my 5 1/2 month old big boy is getting some brownish marks on his sides. I hope this is nothing serious. Would anyone know what these are?
Is he a light coloured rat, maybe a PEW?
If he is its possible these markings are porphryin staining. Is it the tip of the hair shaft that is coloured/
Porphy is a red/blood lie secretion that rats emit from their nose and eyes when ill or stressed. Some amount is normal and is cleaned away by grooming. It's usually rubbed off onto their hips, where it can stain if it's not cleaned off.
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