Sex

Female Lhasapoos typically experience their first heat cycle, known as estrus, between the ages of 6 to 12 months. However, the exact timing can vary from dog to dog. It's important to note that smaller breeds, such as Lhasapoos, may have their first heat cycle earlier than larger breeds.

The heat cycle in female dogs consists of four stages: proestrus, estrus, diestrus, and anestrus. During proestrus, which usually lasts around 9 days, the female dog may exhibit behavioural changes and attract male dogs but will not be receptive to mating. Proestrus is characterised by a swollen vulva and the presence of a bloody discharge.

Estrus, the second stage, typically lasts for about 9 days but can vary. This is when the female dog is receptive to mating and can become pregnant. The discharge during this stage may change from bloody to a lighter colour. Female Lhasapoos may show increased friendliness towards males and may actively seek their attention.

Diestrus follows estrus and lasts for approximately 60 to 90 days. During this stage, the female dog is no longer receptive to mating, and the reproductive system undergoes changes in preparation for potential pregnancy. If the dog does not become pregnant, she will progress into anestrus, which is a period of sexual inactivity.