Dog Having Heavy Period. Cleanup can be exasperating, and canine journal has even reviewed some doggy diapers for pups in heat. Pet parents may notice blood and discharge from their unspayed female dog’s vagina and may think their dog is having a period, much the same as humans do.

You should try this remedy if you experience heavy periods regularly. Dogs do not have periods as such, they have heat, or ‘estrus’ cycles. The age when a dog gets her first estrus or period varies with size and breed, but the vca animal hospitals website says 6 months is average, although large and giant breeds can be as old as 2.