Why does a cat’s beard break? This situation is a very normal phenomenon during the growth and development of cats. When a cat grows and develops to a certain stage, its teeth and hair will be replaced, and its whiskers will fall off and grow again. Normal metabolism causes the cat's beard to break, and the feces removal officials do not have to worry too much, as the cat will grow a new beard. ​​​​​​​ After cats enter old age, their beards will break and fall off. This is a normal physiological phenomenon of cats and is a result of the metabolic decline of cats as they age. In addition to the above two reasons, diseases are also causes of cat whiskers falling off. There are generally two conditions, such as skin diseases or nutritional and metabolic diseases. Simply put, if the cat's fur is infected with bacteria and fungi, causing skin disease, the beard may also fall out. When cats lack vitamins and trace elements and have endocrine disorders, their beards may also fall off. Malnutrition or health problems of the cat cause the beard to break. Nutritional supplements are needed and the cat should go to the pet hospital for timely examination. Cats fight with other animals, causing their whiskers to break. The fight should be stopped immediately.