Dog in heat: female dog in periods, ovulating and open to mates. Different from human cycles. Fertility extends beyond bleeding.
Dogs reach puberty around 6 months, but timing varies by breed. Small breeds earlier, large breeds later (18-20 months).
In heat, a dog's vulva swells due to increased oestrogen. Menstrual cycle causes tissue growth near the vulva, leading to swelling.
Common sign of heat: variable blood discharge volume and changing color. Starts as blood red, becomes pinkish red over time.
During heat, dogs urinate frequently, leaving small amounts as territorial marking to signal fertility to other dogs.
In heat, dogs experience behavior changes like humans. Important to observe and identify these changes during their menstrual days.
Excessive licking of private parts in heat is normal for dogs to maintain cleanliness. Consider dog diapers for managing any mess.
Dogs in heat become more attractive to males, showing increased interest and tail wagging. Sign of openness and receptivity.
In heat, female dog's tail curls to one side, known as "flagging." Suggestive posture to invite male dogs.
One of the most obvious signs of a dog in heat is when a female dog is aroused, she will mount, thrust, or hump. Your dog might also become hyperactive, running out from the backyard to find a mate.