Many people say, "My dog is on her period!" but actually, dogs don't have periods!Formally speaking, a dog's reproductive cycle is called "estrus," which generally lasts for about 6 months.
Why is there blood if there is no menstruation?
The blood and discharge that a female dog expels actually do not come from the uterus but from the vagina, and they are used to signal male dogs that she is starting to become fertile.
The four stages of a 6-month estrous cycle
Phase 1 (Days 3-17): A large amount of estrogen is produced, and the blood discharged is the most and is dark red.Changes in the female dog's behavior include excitement, increased activity and barking, frequent urination, raised tail and back arching, and a tendency to "mount" other dogs.
The second stage is the shortest part, generally lasting 4-7 days, and is the golden period for dog mating. The discharged blood will change from dark red to light pink or straw color. At this stage, the dog will sleep more.
Stage 3 (around 65 days, similar to the duration of pregnancy), regardless of whether the eggs are fertilized, the bleeding will stop.
In the final stage, the dog shows reduced sexual behavior and hormone secretion.
Spaying prevents cancer.
Dogs undergo spaying at 6 to 8 months of age. Unspayed female dogs have a higher risk of developing breast cancer, ovarian cancer, and uterine cancer.
Methods for handling unspayed dogs
If you haven't neutered your dog but don't want more puppies, then on the days your dog is in heat, you need to be extra careful.If there are both male and female dogs at home, they should be separated.If it's not necessary, don't take them out. If you must, put them on a good leash and avoid other dogs.
Reference link: bit.ly/狗狗是沒有月經的
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