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Why is my Whippet underweight and her heat cycle so delayed?

Updated On September 23rd, 2025

Pet's info: Dog | Whippet | Female | unspayed | 4 years and 1 month old | 26 lbs

Hi am a little worried about my whippet .its seems like a long time since she came into season nearly ( 8m) she is 4 years ols and usualy comes on 2 a year .she also doesnt seem to be gaining weight she is 12kg and 19" high

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1 Answer

Most Helpful Answer

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Answered By Emily Fukuzato, DVM

Veterinarian

Published on May 7th, 2017

Hello there and thank you for reaching out to Pet Coach. Yes, I agree, Poppy does look to be a bit thin. She has a low body condition score despite, what I assume, is a normal appetite. This could be due to high activity level and the need for more nutrition in her diet, parasites can cause weight loss or lack of appropriate weight, or internal organ dysfunction (this is certainly possible although she appears to be healthy at home). Her delay in a normal heat cycle may be due to her lean body condition, it may just be normal for her as her body is changing, or there could be an internal health problem with her reproductive organs. If she is a very active dog, i would recommend to increase her nutrition level and make sure she is on a high quality diet. You could give it just a bit more time to see if her heat cycle comes within the next month of two, given her lean body condition. I would recommend to weigh her weekly or biweekly so that you will have this information about the fluctuation in her weight for Poppy's veterinarian. If these problems do not resolve - weight gain and normal heat cycle within 4-8 weeks, I would recommend to have her examined by her veterinarian. Best of luck to Poppy. She is a beautiful Whippet.

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