How does a cat cough up fur? - briefly
Cats typically cough up fur during grooming sessions when they ingest loose hair while licking their coat. The hairball forms in the stomach and is eventually regurgitated as a compact mass.
How does a cat cough up fur? - in detail
Cats are known for their meticulous grooming habits, which involve licking and biting at their fur to remove dirt, loose hair, and other debris. This process is facilitated by the structure of a cat's tongue, which is covered in tiny, backward-facing hooks called papillae. These papillae are designed to catch and remove loose fur, as well as any foreign objects that may have become embedded in the coat.
During grooming, cats swallow some of the fur they remove from their bodies. While this might seem problematic, it is a natural part of their digestive process. The swallowed fur passes through the cat's digestive system and eventually exits as part of the feces. However, not all ingested fur can be easily digested or passed through the intestines. In such cases, the cat may regurgitate the hairball to remove it from its system.
The act of coughing up a hairball is typically preceded by a period of excessive grooming, during which the cat's tongue becomes saturated with loose fur. As more and more hair accumulates in the stomach, it can form a compact mass known as a trichobezoar. When this mass becomes large enough or causes discomfort, the cat's body responds by initiating the regurgitation process.
Regurgitation is a reflex action that involves the relaxation of the lower esophageal sphincter and the contraction of the abdominal muscles. This allows the hairball to be expelled from the stomach and out through the mouth, often accompanied by a distinctive retching sound. The process can be somewhat uncomfortable for the cat, but it is a necessary mechanism for removing indigestible material from its system.
To support their cats' grooming habits and minimize the risk of hairballs, owners can provide appropriate grooming tools such as brushes or combs. Regular brushing helps to remove loose fur before it can be ingested by the cat. Additionally, incorporating a small amount of petroleum jelly into the cat's diet can help lubricate the digestive system and facilitate the passage of hairballs through the intestines. However, if a cat exhibits frequent or severe vomiting, it is important to consult with a veterinarian to rule out any underlying health issues.