Hairball Prevention That Works: Diet, Brushing, and Remedies
The occasional hairball is normal, but frequent ones are miserable for your cat and your floors. This guide covers what genuinely reduces hairballs — regular brushing, hydration, fibre and diet, and lubricant remedies — plus the warning signs that a hairball is really something more serious.
Quick answer
Hairballs form when cats swallow loose fur during grooming and it clumps in the stomach instead of passing through. The three things that reliably help are: brush more so there is less fur to swallow, keep the gut moving with water and fibre, and use a vet-approved hairball remedy if needed. An occasional hairball is normal; frequent ones, or retching that produces nothing, warrant a vet visit.
The occasional hairball is normal, but frequent ones are miserable for your cat and your floors.
Why cats get hairballs
A cat's tongue is covered in tiny backward-facing hooks that pull loose hair into the mouth during grooming. Most of that hair passes harmlessly through the gut and out in the stool. Sometimes it collects in the stomach and is vomited back up as a wet, cigar-shaped mass. Long-haired breeds, cats who over-groom, and cats in heavy shedding seasons swallow the most. In humid places like Hong Kong, indoor cats under year-round air-conditioning can shed almost constantly, so hairballs are a year-round issue rather than seasonal.
Brushing: your first and best tool
Every hair you capture on a brush is one your cat cannot swallow. Brush short-haired cats a few times a week and long-haired cats daily, especially during shedding. Use a de-shedding tool or fine comb that reaches the undercoat, where loose hair hides. Keep sessions short and pleasant so your cat looks forward to them. For cats who groom each other or over-groom from stress, extra brushing matters even more.
Every clump on the brush is fur that won't be swallowed and turned into a hairball.
Diet and hydration
What goes in helps fur move through. A few adjustments make a real difference:
- Hydration: water keeps the gut contents moving so fur passes rather than clumps. Add a pet fountain, wet food, or extra bowls.
- Fibre: some cats do better on a fibre-rich diet, which helps carry swallowed fur through the intestines.
- Hairball-control foods: many contain added fibre and are formulated to reduce hairball formation; ask your vet if one suits your cat.
- Wet food: its moisture supports both hydration and gut motility, useful for hairball-prone cats.
More water and wet food keep the gut moving so swallowed fur passes through, not up.
Lubricant remedies
Malt-based or petroleum-based hairball pastes coat swallowed fur so it slides through the gut more easily. They can help hairball-prone cats but are not for daily long-term use without advice, as some can interfere with the absorption of fat-soluble vitamins. Never use plain human laxatives. Always check the dose and suitability with your vet, especially for kittens, seniors, or cats with other health issues.
When it isn't really a hairball
Owners often blame hairballs for any vomiting, but frequent vomiting is not normal and fur is often not the real reason. Food sensitivities, inflammatory bowel disease, parasites, and other illnesses cause vomiting too. If your cat vomits often — with or without fur — a vet should investigate rather than you reaching for more hairball paste.
Quick FAQs
How many hairballs are normal? An occasional one, perhaps every week or two for a long-haired cat, is usually fine. Several a week or daily is not — see a vet.
Does hairball food actually work? For many cats, yes — the added fibre helps fur pass through. It works best combined with regular brushing and good hydration.
Can a hairball be dangerous? Rarely, a large one can cause an intestinal blockage, which is an emergency. Signs include repeated unproductive retching, not eating, and a swollen belly.
My short-haired cat gets hairballs too — why? Any cat that grooms swallows fur. Over-grooming from stress, allergies, or skin problems increases it, so heavy shedding in a short-haired cat is worth a vet's look.