The whiskers on your cat’s nose are generally about as long as your cat is wide, so they help her to figure out how wide an opening is and whether she’ll fit through it. Some people say that if cats gain weight, their whiskers get longer; I haven’t seen enough evidence to know whether this is true. The position of your cat’s whiskers can be an indicator of her mood. If her whiskers are relaxed and sticking out sideways, she’s calm. If they’re pushed forward, that means she’s excited and alert. If they’re flattened against her cheeks, she’s angry or scared. Of course, you’ll need to check her “whiskergram” against her other body language, such as the position of her ears and tail, to confirm what the whiskers are telling you. Although your cat does shed a couple of whiskers from time to time, you should never trim your cat’s whiskers. She’ll become disoriented and may begin acting dizzy and confused because she’s no longer receiving those vital navigation signals. Imagine if somebody grabbed you and put a blindfold on you and you couldn’t take it off for a few weeks — that’s about what it’s like for a cat whose whiskers get cut off. Source: Catster