I Have A 9month Old English Mastiff And She Just Had Her First Heat. How Long After She's Done Bleeding Is She Out Of Heat?


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Heat cycle in dogs usually starts at the age of 6-8 months. Normal duration of canine heat cycle is 2-4 weeks with an average of 3 weeks. Canine heat cycle can be of 4 stages. Bleeding starts during first stage of heat cycle which is called proestrus. This period can last for 10 days. Second stage of canine heat cycle is called estrus. During this stage, bleeding is reduced and dog show flagging tail which means she is ready for mating.

Third stage is called diestrus which can be of 5-68 days if dog become pregnant and in case of no pregnancy then this stage can last for 60-100 days. Fourth stage is called anestrus which can last for 4-5 months.

So, your dog will be out of 3-4 weeks starting from first day of bleeding.

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