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My 3-week-old puppy is yellow, skinny, and not nursing. Is she sick?

Updated On September 23rd, 2025

My name is Patricia..Our three weeks old puppy has a yellowish skin and pee. She is also not drinking her mother's breastfeed milk.. she's a bit skinny compare to her brother. Why is that? Is she having a health problem? Please doc.. help us.

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Answered By Lauren Kennedy, DVM

Veterinarian

Published on January 12th, 2019

Yellow colored skin can be concerning and is usually caused by a destruction of red blood cells or a liver issue. Since the puppy is not nursing wel I would recommend supplementing her with a puppy milk replacer to ensure she is getting enough nutrients. I would also recommend taking her in to be examined by a veterinarian to ensure nothing too serious is going on. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck!

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