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Hairball facts for kids

Kids Encyclopedia Facts
Long-haired-cat-hairball
A 10 cm (3.9 in) cat hairball

A hairball is a small, tightly packed clump of hair or fur that forms inside the stomach of animals. Animals sometimes throw these up when they become too big. Hairballs are mostly made of fur, but they can also contain bits of vomit or recently eaten food.

Cats are very likely to get hairballs. This is because they clean themselves by licking their fur. When they lick, they swallow loose hair, which can then build up in their stomach.

Rabbits also get hairballs because they groom themselves in the same way as cats. However, hairballs are much more dangerous for rabbits. Unlike cats, rabbits cannot vomit them up. A rabbit's digestive system is very sensitive. If a hairball blocks it, the rabbit might stop eating. This can quickly lead to serious health problems and even death if not treated right away.

What Are Hairballs?

Hairballs are exactly what they sound like: a ball of hair! They form inside an animal's stomach. When an animal grooms itself by licking its fur, it swallows loose hairs. Most of the time, these hairs pass harmlessly through the animal's digestive system. But sometimes, the hair collects and forms a clump. This clump can grow larger over time.

HairBallTabbyCat
A 5 cm (2.0 in) cat hairball

Why Do Cats Get Hairballs?

Cats are famous for their cleanliness. They spend a lot of time grooming themselves. Their tongues have tiny, hook-like structures that act like a brush. These hooks help them remove loose and dead fur. While this keeps their coats healthy and clean, it also means they swallow a lot of hair. If too much hair builds up, it can form a hairball. Cats usually vomit these hairballs to get rid of them. This is a natural way for them to clear their stomachs.

Hairballs and Rabbits: A Serious Problem

Rabbits also groom themselves constantly. They swallow hair just like cats do. However, rabbits cannot vomit. This means that if a hairball forms in a rabbit's stomach, it cannot be thrown up. The hairball can block the rabbit's digestive system. This blockage can stop the rabbit from eating or drinking. If a rabbit stops eating, it can become very sick very quickly. It is important for rabbit owners to watch for signs of hairballs. These include a lack of appetite or changes in their droppings.

Can Humans Get Hairballs?

It is very rare for humans to get hairballs. However, there have been a few cases reported. Unlike animals, humans do not normally swallow their own hair. When hairballs do occur in humans, it is usually because someone has a habit of eating their own hair. This condition is called trichophagia. Hair cannot be digested by the human body. If a hairball forms, it can cause serious blockages in the digestive system. Even vomiting may not be enough to remove it. This can lead to health problems that require medical attention.

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Hairball Facts for Kids. Kiddle Encyclopedia.