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Why is my dog lethargic with red, watery eyes and drinking a lot?

Updated On September 23rd, 2025

My dog's eyes have been watery and red. She's been acting very down, and not herself. She's also been drinking lots of water.

2 Answers

Most Helpful Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on November 25th, 2015

Red and watery eyes may indicate an issue such as an allergy to something, or even illness such as respiratory issues. You may see additional signs such as fever, lethargy, loss of appetite or even nasal discharge. An increase in drinking water may be related, or may just be an attempt to stay hydrated if your dog is dehydrated from not feeling well (you can check this by gently pinching the loose skin on the back of your dog's neck- if it is quick to go back to normal, your dog is hydrated, if it is slow or sticky in returning back to normal, it is an indication of dehydration). If her symptoms do not resolve within the next day or so, or if she shows additional signs of illness or worsening of already seen symptoms, then scheduling a veterinary checkup is best.

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9Pet Parents found this answer helpful

Related Answers from Veterinarians

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on September 30th, 2017

    Thanks for using Petco Pet Education Center, formerly Petcoach! These clinical signs can sometimes be observed in patients with gastrointestinal conditions such as gastroenteritis, infections, inflammatory bowel disease, dietary indiscretion, among others. I recommend that you have Tom evaluated by a veterinarian as soon as possible for further assessment and treatment. They may recommend abdominal imaging and bloodwork to try to investigate the issue. Good luck! I hope he gets better soon! In the meantime, keep water available at all times to try to prevent dehydration.

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