Medical disclaimer: This article is educational and provides general guidance on cat hairballs. If your cat shows persistent vomiting, loss of appetite, lethargy, or has not passed a hairball despite repeated retching, consult your veterinarian promptly.
You hear the sound before you see it. That unmistakable retching, followed by the discovery of a soggy, tubular clump on your floor. Hairballs are one of the most common things cat owners deal with, and yet they remain surprisingly misunderstood. Most are harmless. Some are worth taking seriously. Knowing the difference makes all the difference.
What Is a Hairball, and Why Do Cats Get Them?
When your cat grooms herself, the tiny backward-facing hooks on her tongue catch loose and dead hairs. Most of this hair passes through the digestive system without issue. But some of it accumulates in the stomach, forming a dense, compressed mass that the body can't move forward. The only way out is back up.
That's a hairball. Despite the name, it usually looks more like a cylinder than a ball by the time it's expelled, shaped by the narrow passage of the esophagus. The occasional hairball is a completely normal part of life for most cats, particularly those with longer or denser coats.
The frequency varies widely between cats. Short-haired cats may produce one every few weeks or less. Long-haired breeds, heavy shedders, and cats that groom excessively can produce them more often. Shedding season, which runs through spring and early summer, is typically when hairball activity peaks.
Recognising Hairball Symptoms in Your Cat
Most cat owners learn to recognise the signs quickly. The classic sequence is a series of low, retching sounds accompanied by visible abdominal heaving, followed by the expulsion of the hairball itself. Your cat may crouch low, extend her neck, and look visibly uncomfortable for a minute or two before it passes.
When It's Normal
A hairball every week or two, produced without lasting distress, is generally within the normal range. Your cat should return to her usual self immediately after. Eating, drinking, and behaviour should all be unchanged.
When to Call Your Vet
Some signs suggest the hairball is not moving and may be causing a blockage. Contact your vet if your cat retches repeatedly over several hours without producing anything, if she stops eating or drinking, if her abdomen looks or feels distended, or if she seems lethargic and withdrawn. A genuine intestinal blockage is a medical emergency and requires prompt veterinary attention.
It's also worth noting that not every retching episode is a hairball. Persistent vomiting can have other causes, including inflammatory bowel disease, parasites, or food intolerance. If your cat vomits frequently without producing a hairball, a vet visit is the right next step.
How to Prevent Hairballs: The Practical Approach
Prevention is more effective than waiting for hairballs to become a problem. The good news is that most preventive measures are simple, low-effort, and already part of good general cat care.
Regular Brushing
The most impactful thing you can do is reduce the amount of loose hair your cat swallows in the first place. Regular brushing removes dead and shedding hair before your cat can ingest it during grooming. For most cats, a few sessions per week is sufficient. During peak shedding season, daily brushing makes a noticeable difference.
The YMOAs Pin Brush for Dogs and Cats works well for this. The smooth, rounded pins reach through the topcoat without scratching the skin, and the wooden handle makes longer grooming sessions comfortable to hold. It's a tool that works across coat types, from short-haired domestic cats to longer-coated breeds. If you want to understand what's driving the extra shedding at this time of year, our guide on summer to autumn shedding explains the seasonal coat cycle in detail.
Diet and Hydration
Cats that are well-hydrated tend to move hair through their digestive system more efficiently. Wet food contributes significantly to daily fluid intake, and many cats that primarily eat dry food are chronically slightly dehydrated without their owners realising it. Mixing in some wet food, or offering a cat water fountain to encourage drinking, can make a real difference to hairball frequency.
Some cat foods are specifically formulated for hairball control, using higher fibre content to keep the digestive tract moving smoothly. These are worth considering if your cat produces hairballs frequently, particularly during shedding season.
Hairball Paste and Supplements
Hairball pastes, available from most vets and pet shops, use a mild laxative base, typically petroleum jelly or a plant-based alternative, to help hair pass through the intestines rather than accumulating in the stomach. Most cats accept them willingly, especially malt-flavoured versions. A small amount once or twice a week is the typical recommendation, but follow the guidance on the product you choose.
Discouraging Excessive Grooming
Some cats over-groom in response to stress, boredom, or skin irritation. If your cat grooms far more than seems necessary, or if you notice thinning patches in her coat, it's worth investigating the underlying cause. Enrichment activities, additional playtime, and a stable routine can all help reduce stress-related overgrooming. Our indoor cat enrichment guide has practical ideas for keeping your cat mentally stimulated at home.
Long-Haired Breeds and Higher-Risk Cats
While any cat can develop hairballs, some are more prone than others. Long-haired breeds such as Persians, Maine Coons, and Norwegian Forest Cats naturally shed more and have denser coats that require more grooming, both by the cat and by you. These breeds typically benefit from daily brushing year-round, not just during shedding season. Active, short-haired breeds like the Bengal also groom intensively, so hairballs can be more frequent than their coat length suggests. Our Bengal cat guide covers their specific grooming needs in more detail.
Older cats tend to groom more fastidiously than younger ones, which can increase hairball frequency as they age. Cats that have recently experienced a change in environment, a new pet in the household, or any other stressor may also groom more intensively for a period.
If you live with a long-haired breed or a cat that produces hairballs regularly, making brushing a consistent habit early on is the most practical investment you can make. The fur you remove with a brush is fur that won't end up on your sofa, on your clothes, or in your cat's stomach.
And yes, during shedding season, some of it will end up on you no matter what. That's just the deal. If you've made peace with it, the YMOAs "Yes, It's Cat Hair" Tee might as well make it official. 🐈
Frequently Asked Questions
How often is too often for hairballs?
More than once a week consistently is worth discussing with your vet, especially if your cat seems uncomfortable or is losing weight. Occasional hairballs are normal; frequent ones may indicate a dietary or health issue worth investigating.
Can I use petroleum jelly to help my cat pass a hairball?
Plain petroleum jelly in very small amounts is sometimes recommended as a short-term aid, but purpose-made hairball pastes are preferable since they're formulated specifically for cats and are easier to dose accurately. Always check with your vet before using any remedy regularly.
Do indoor cats get more hairballs than outdoor cats?
Not necessarily more, but indoor cats may groom more out of boredom or habit, which can increase hairball frequency. Good enrichment and regular brushing help manage this.
Hairballs are rarely cause for panic, but they're also not something to ignore entirely. A bit of regular brushing, attention to diet, and knowing when something looks off is all most cat owners need to keep hairball season manageable. 🐾
References
Cornell University College of Veterinary Medicine. (n.d.). Hairballs in cats. Retrieved from https://www.vet.cornell.edu/departments-centers-and-institutes/cornell-feline-health-center/health-information/feline-health-topics/hairballs
International Cat Care. (n.d.). Hairballs in cats. Retrieved from https://icatcare.org/advice/hairballs-in-cats/
VCA Animal Hospitals. (n.d.). Hairballs in cats. Retrieved from https://vcahospitals.com/know-your-pet/hairballs-in-cats
Llera, R., & Downing, R. (n.d.). Hairballs in cats. VCA Canada. Retrieved from https://vcacanada.com/know-your-pet/hairballs-in-cats