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My 4-month-old female dog hasn't gone into heat. Is this normal?

Updated On September 23rd, 2025

Pet's info: Dog | Pug | Female | 12 lbs

I bought her 4 month before and she isn't on her heat yet. Does i need to take her to any doctor.

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on November 14th, 2017

Not unless she is symptomatic (lethargy, vaginal discharge, etc). Most female dogs will go into heat around 6 months of age. Some can go sooner, some later. Large breeds may go a year before having a heat cycle.

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