A cat’s beard can grow back after being cut, and it will take about 2-3 months to grow fully. However, it is best not to cut the cat’s beard indiscriminately, because its beard is used to sense balance and surrounding changes. Especially at night, it can protect the cat from hitting other objects. The roots of the whiskers are connected to the nerve endings. Therefore, if the whiskers are lost, the cat may have problems walking.