Sex

Scottish Terriers, like most dogs, go through a reproductive cycle known as estrus or heat. The timing of their first heat cycle can vary, but it generally occurs between the ages of 6 and 9 months. However, it's important to note that individual dogs may experience their first heat at slightly different ages.

During the heat cycle, female Scottish Terriers experience hormonal changes that prepare their bodies for potential breeding. The cycle consists of different stages, including proestrus, estrus, and diestrus. Proestrus is the initial phase where the female dog's vulva swells and she may experience a bloody discharge.

This is followed by the estrus stage, commonly known as the "heat" period, during which the female is fertile and receptive to mating. Finally, diestrus is the post-estrus phase where the female's reproductive system returns to its normal state if she does not become pregnant.

Scottish Terriers typically experience estrus approximately twice a year, but this can also vary. The length of the heat cycle can range from two to three weeks, with the estrus phase lasting around 7 to 10 days. During this time, female Scottish Terriers may show signs of being more receptive to male dogs, display changes in behaviour, and attract attention from male dogs in the vicinity.