Every cat parent has heard it, that 3am gagging from the hallway. Hairballs are a fact of cat life, but "normal" is a narrower window than most of us think. Here's what the science and the vets generally agree on.

## Why cats get hairballs

Cats groom themselves for about a quarter of their waking hours. Those tiny backward-facing barbs on their tongue pull loose fur straight into the stomach. Most of it passes through the gut and out the other end, but a fraction stays behind, collects, and eventually comes back up.

Some cats are more prone than others:

- **Long-haired breeds** (Persians, Maine Coons, Ragdolls)
- **Cats who over-groom** due to stress, allergies, or skin discomfort
- **Senior cats** with slower gut motility
- **Indoor cats** year-round (no seasonal shedding cycle)

## How often is "too often"?

A hairball every 2–4 weeks is generally fine. More often than that, or with any vomiting _without_ a hairball, is worth a vet visit. Repeated unproductive gagging can signal esophageal or respiratory issues, not a hairball.

## Four things that actually help

### 1. Brush more than you think

For short-haired cats, 2–3 times a week. For long-haired, daily is ideal. Brushing removes fur before it ends up in the stomach. Most cats warm up to it if you pair it with treats and keep sessions short.

### 2. Keep them hydrated

A well-hydrated gut moves fur through more efficiently. Most indoor cats are chronically under-hydrated. The fixes:

- Switch partially or fully to wet food (roughly 75% water vs. 10% for dry)
- Add a water fountain, moving water encourages drinking
- Place multiple water stations around the house

### 3. Add fiber thoughtfully

A small amount of added fiber helps fur move through the gut. Options your vet may suggest:

- A teaspoon of plain canned pumpkin (not pie filling) a few times a week
- A commercial hairball-control food formulated with fiber
- Psyllium or cat-specific digestive supplements, always ask your vet first

### 4. Address over-grooming at the source

If your cat is pulling fur out in patches or grooming until the skin is red, the hairballs are a symptom, not the problem. Flea allergies, environmental allergies, and anxiety are the three most common causes. A vet visit is the right first step.

## What to skip

- **Petroleum-based hairball pastes** as a daily habit, occasional use is fine, but they're not a long-term solution and can interfere with vitamin absorption
- **Shaving long-haired cats** unless medically necessary, their coat regulates body temperature, and regrowth can be patchy

## When to call your vet

Call sooner rather than later if you see:

- Repeated gagging with nothing coming up
- A hairball every few days
- Loss of appetite, lethargy, or constipation alongside the gagging
- Weight loss

These can point to intestinal blockages, which are serious and need imaging to diagnose.

Hairballs are part of the deal with cats, but a weekly-or-more habit isn't normal, and small changes to grooming and hydration usually move the needle fast.