The same reason they swell on a human. That dog is preparing milk for a litter.
Yes it is because it is Mating time and the Uvula becomes inflamed and swollen to get ready for mating!
By mating with a male dog.
usually in reference to dog mating where the male dog penis develops a large "knot" at the end during mating.
73 but in mating season 32...their udders swell around mating season thus, more ink
home
NO! You have to spay or neuter.
no
yes.
Spay your dog AFTER the menstrual period.
Dog Breeding and mating
If your dog is in mid-season, bleeding after mating is perfectly normal. If you are concerned by the amount of blood or its color, your dog should be examined by a veterinarian.