If you suspect that your dog has missed their heat, it’s important that you call your vet to schedule an appointment. Your dog can experience a silent heat where they go through the heat cycle without showing any outward signs. But it’s better to be safe than sorry.
A missed heat could be a sign of a serious health issue such as hypothyroidism (a thyroid issue that can impact your dog’s metabolism), hyperadrenocorticism (also known as Cushing’s Disease), hypoadrenocorticism (also known as Addison’s Disease), diabetes mellitus, and cancer.