At What Age do Female Chihuahua Go Into Heat?

Q: At what age do female Chihuahua go into heat for the first time?
I have a 5-month-old female deer head chihuahua and I am breeding her with my male. I need to know if she can breed the first heat or do I need to protect her from him?

Photo Credit: Jose Antonio Tovar/Flickr CC

Answers and Views:

Answer by Earl E Morningwood
6 -8 months. But it varies.

Answer by Amber
She will come in heat about 6-8 months old. But it is very very important that you wait to breed her until AT LEAST her second heat cycle. chihuahua's are such small dogs that the older and bigger they are the easier the pregnancy and birth…FYI a C-section is common in small dogs so make sure you have a vet on hand when you are expecting pups….C-sections can cost between $ 400-$ 800 so be prepared for that also!! So yes, protect her from your male chi. until her 2nd cycle!! Good luck with that!!

And it is NOT good for your dog's health to let her have a litter of puppies before she is spayed. Actually having a dog spayed before their FIRST heat cycle greatly reduces the chances of ovarian cancers and tumors!! The more heat cycles a dog goes through the more you are increasing the chances of her getting cancer in her lifetime!! Have her spayed ASAP!!

Answer by Jazzy B
No dog needs to be bred before a spay.. They do not need to have a litter at all that is an old wives take.. There are enough unwanted dogs in the world.

Answer by Michelle
You should wait until they are 2 yrs old to breed. You should make sure the male is smaller than the female. Be careful as this is not a matter to take lightly and it is possible she would have to have a c-section or worse that she could die. Please keep in mind that there are tons of dogs that are homeless and being euthanized in shelters daily. Please be responsible and do not add to these numbers, spay/neuter your pets.

• How Old Should Chihuahua Be Before Spayed?
• Can a Chihuahua become Too Old to Give Birth?
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Answer by Jos
Don’t breed first heat. Don’t breed at all if possible please spay her.

Answer by Monica G
Usually, it is best to wait until the pup is a year old before you breed her. When we had our female chihuahua, she went into heat for the first time when she was 6 months old. We had to buy dog panties and pads! It was a mess! We were actually considering breeding her, but after that, we changed our minds.

The first time your dog goes into heat, it will last longer than any consecutive times. So just bear with it and once she reaches a year old you should be able to breed her with your male. Good luck!

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