One of the most common causes, when a dog is licking her private area constantly, is a urinary tract infection. Affected dogs tend to lick their private area often because the area is irritated and burns.
3. Licking more around her back end. As a result of the vaginal discharge, you may notice your dog licking around her vulva a lot more to keep clean. This rarely causes any problem and is a good indication of heat, but if the licking is excessive watch out for signs of soreness or infection of the skin.
Why do some dogs lick other dogs' ears? Dogs may lick another dog's ear to say hello and let them know that they're friendly. They may also do it as part of a grooming and bonding process or simply because they enjoy the taste of earwax. Some dogs may be more likely to lick ears when they're bored.
However, male dogs lick the period blood in most cases. It doesn't mean that female dogs never lick period blood, but it seems more common in males. Male dogs are more attracted to the period blood smell than female dogs. It's the curiosity inside them that they start investigating the scent they are attracted to.
The Root of the Behavior Licking is a natural part of the male dog's behavior. Female dogs will lick their vulva quite vigorously sometimes as they derive pleasure from this activity. Licking the vulva from a sexual perspective could be the sign that your female is coming into heat.
The male is just acting on instinct. Fix the dogs and this behavior may stop. If your female and male are fixed they can still be acting out this behavior and there is not much you can do to stop it, unless you keep the animals separated.
Dogs lick each other's privates for a variety of reasons. Dogs may lick the scrotum and penis to identify themselves as members of their own pack, or they may do it to transfer scent from one dog to another. Some dogs will also lick the genitals out of curiosity or sexual arousal.
Male dogs seem to be more attracted to scents than female dogs. It may not necessarily be menstrual blood that they're attracted to, as it could just as easily be another scent. But if your period blood happens to smell different from usual and enters their radar, they're more likely to investigate it out of curiosity.
Deference. An adult dog might lick another dog's face to show subordination. In other words, he wants to say “you're in charge, and I mean you no harm.” If a dog meets a peer he highly respects, he might lick that dog's face to show deference.
A dog's penis will become swollen during a normal erection. The enlargement of the bulbus glandisbulbus glandisMale canines are the only animals that have a locking bulbus glandis or "bulb", a spherical area of erectile tissue at the base of the penis. During copulation, and only after the male's penis is fully inside the female's vagina, the bulbus glandis becomes engorged with blood. is especially obvious since it causes sizeable bumps to form on either side of the base of the penis.
Possible causes include a urinary infection, vaginitis, urinary stones etc. She needs to be checked over and the vet may also analyse her urine. Treatment depends on what is found but may include antibiotics and anti-inflammatories. I do hope this helps.
An unspayed female dog's vulva will become swollen as a part of her normal heat cycle, but it should return to its “normal” size after the heat is done (anywhere between 2-21 days is considered normal). If your dog has a condition called vaginal hyperplasia, dark pink or red tissue may protrude from the vulva.