Irregular Heat Cycles in Dogs
Irregular Heat Cycles & Abnormal Heat Cycles Although most dogs experience their heat cycle at regular intervals after their cycles begin, sometimes dogs experience abnormal cycling. Abnormal heat in dogs can include silent, absent, split, or irregular cycles. Irregular heat cycles are often an indication that the ovaries are not functioning properly. When this is the case, abnormal hormone levels are typically responsible for a failure to trigger regular heat cycles. Abnormal heat cycles are an important cause of infertility in female dogs. Silent Heat Silent heat occurs when a person is unable to detect a heat cycle because the dog doesn’t exhibit the normal signs of a heat cycle. During a silent heat, the dog still goes into heat and can become pregnant. In most cases, male dogs are capable of detecting silent heat. Your vet can confirm a silent heat cycle by performing vaginal secretion and blood tests. Absent Heat Absent heat refers to a dog that does not come into ...