Hairballs

What Are Hairballs?
Most cat owners are familiar with the sight and sound of their kitty producing hairballs. Rid by vomiting, hairballs are common in cats and are usually a byproduct of feline hygiene.
What Causes Hairballs in Cats?
During a cat’s daily grooming regimen, he may inadvertently swallow loose hair, which generally passes through the digestive system into the cat’s stool. Some hair can remain, however, and collect in the stomach or small intestine, causing the cat to hack, gag or retch until he vomits the offending detritus. The hair that is vomited can appear matted or tubular in shape.
What Are the General Symptoms of Hairballs?
The primary symptoms of hairballs are periodic hacking, gagging and vomiting. Hairballs may also cause decreased appetite and constipation. You might see accumulated hair in the vomited material. However, sometimes a hairball can cause an upset stomach and the cat will bring up just food or mucus.