Sex

Usually lasting around 9 or 10 days, this is the first stage of the heat cycle. This is the time when a female Clumber Spaniel's reproductive system gets ready to start making babies. She is not ready to mate just yet, however, she may have vulvar swelling and discharge. During this period, she may exhibit symptoms of rejection to male canines, even if they may be attracted to her.

Most people call this stage "being in heat." Although it might vary, estrus usually lasts about 7 to 10 days. Estrus is the time when a female Clumber Spaniel opens herself sexually to potential partners. The consistency and colour of the discharge may alter, becoming less bloody and more straw-coloured. Those who want to breed their dogs should do so at this period.

The gestational period ends with the diestrus phase. This phase continues for around two months after mating or not. Diestrus is the time when a pregnancy develops if the impregnating process is successful. Assuming this does not occur, her menstrual cycle will progressively enter its dormant period.

Several months make up anestrus, the reproductive cycle's resting period. At this period, neither the female Clumber Spaniel nor any of her reproductive organs are in a fertile state. Anestrus may last anywhere from a few weeks to a few months.

The removal of the uterus and ovaries is a frequent surgical surgery called spaying (ovariohysterectomy). The Clumber Spaniel will no longer be able to have puppies because of this operation. In addition to minimizing the likelihood of some reproductive illnesses, spaying a dog that will not be used for breeding might provide health advantages.