Spring shedding is not random. Lengthening daylight tells the coat to drop its winter layer, the heavy loss runs about 2 weeks, and stragglers keep coming for another 2 to 4 weeks. Five minutes with the right tool every day pulls out more undercoat than a 30-minute session on Sunday, and it keeps that hair off the sofa and out of the cat's stomach.
Why the coat lets go in March
Cats read day length, not temperature, so the moult starts once daylight passes roughly 12 hours and runs 3 to 4 weeks end to end. An indoor cat under lamps sheds on a flatter curve with 2 smaller peaks, which is why some homes find hair in January and July as well. The volume is real: a healthy short-haired cat drops a few hundred hairs a day off-season and several thousand at the peak. A double coat holds most of that loose hair against the skin until something pulls it out, and that trapped layer is what forms mats at the armpits and behind the back legs, and what the cat swallows while grooming 2 to 4 hours a day.
Five minutes a day beats thirty minutes on Sunday
Fix the time and keep it at 5 minutes, once a day. Right after the evening meal works best, because a cat that has just eaten is calmer and less likely to treat the brush as prey. Work in 2 passes: 3 minutes on the back, flanks and belly line, then 2 minutes on the trousers, tail base and chest. Use short strokes of 10 to 15 cm with the coat, and keep the pressure light enough that the pins glide. The skin under a cat's coat is only 2 to 3 mm thick, and a slicker dragged hard leaves a red scratch line in about 20 strokes.
Skip the belly and the inside of the back legs if the cat objects. A 5-minute session that ends calmly is worth more than a 15-minute fight, because a cat that has been pinned once will hide under the bed for the next 3 days. Two people can split the job: one holds a lickable treat, the other brushes. Watch the clock rather than the fur pile — 5 minutes, then stop while the cat still wants more.
Four tool types, and the coat each one fits
Most homes need 2 of the 4, not all of them. Buying all 4 is how people end up with a drawer of combs and a matted cat.
| Tool | Coat it fits | Session | Times per week | What it lifts |
|---|---|---|---|---|
| Slicker brush, fine pins | Short single coat (Bengal, Siamese, 4 to 5 kg adults) | 3 min | 5 to 7 | Loose topcoat, surface dust |
| Undercoat rake, 9 to 12 teeth | Double coat (British Shorthair, Maine Coon, Persian cross) | 5 min | 2 to 3 | Dead undercoat before it mats |
| Rubber curry or grooming glove | Short coat, kittens from 8 weeks, cats that hate pins | 2 min | 7 | Surface hair, and it feels like petting |
| Fine metal comb, 1 mm spacing | Face, legs, tail base, the 2 cm behind the ears | 2 min | 3 | Mats, flea dirt, ticks |
What to change during the two-week peak
In the 14 days of heaviest loss, brush daily with the tool matched to the coat, and use the rake or a deshedding blade no more than twice a week. Those tools cut and pull undercoat, and daily use across 2 weeks strips the insulating layer and leaves the coat patchy for 2 to 3 months. Add a 2-minute pass with a rubber glove over the surfaces the cat lies on — sofa, cat tree, car seat — so the hair you loosen gets collected instead of redistributed. Wash bedding weekly at 60 °C; at 40 °C the hair stays welded into the fabric. This is also the week the first windows open, so read the screen check before you leave one tilted open.
Hairballs: one every 2 weeks is the line
One hairball every 2 weeks during the peak, in a cat that is eating, playing and passing normal stool, is ordinary housekeeping. A malt or petroleum-based paste given once every 2 weeks through the 14-day peak is the usual preventive; more often than that softens stool and interferes with fat-soluble vitamins. What is not normal: 2 or more hairballs in 2 weeks, a hairball followed by 24 hours off food, vomiting with no hair in it at all, or straining in the litter box for more than 48 hours. Those point at a gut that is not moving rather than at the coat, and need a vet within 24 to 48 hours. More on that distinction sits in hairballs versus other vomiting.
A cat that coughs — dry, neck stretched out, 10 to 30 seconds, ending in a swallow — is usually showing asthma or bronchitis, not a hairball. Coughing cats need an exam, not another tube of paste. Hair in the stool is normal; hair packed into a firm 3 cm sausage is not.
Products to keep off the coat
Grooming is when people reach for sprays and wipes, and it is also when the cat licks its coat most. Essential oils, tea tree, citrus and eucalyptus are toxic to cats at small amounts, and a cat that grooms a sprayed flank swallows what you applied. Check the household toxicity list before anything new goes on the fur. Detanglers built for human hair, dryer sheets and fabric softener all leave residue that ends up in the stomach. A cloth dampened with 30 °C water is enough for surface dust.
When shedding is a symptom
Three patterns need a vet rather than a better brush: loss that is symmetrical on the flanks and belly, which points at thyroid, diabetes or another hormonal cause; a bare patch over 2 cm across that has not refilled in 3 weeks; and shedding alongside weight loss or an appetite change over 1 to 2 months. Seasonal loss is even and general. A patch is not seasonal, and a bald belly with an intact back is itch or pain, not moult.
Run this routine this week
- Buy 2 tools, not 4: a slicker for a single coat, a rake for a double coat, plus a 1 mm metal comb for faces and legs.
- Set a 5-minute timer for 19:00, straight after the evening meal, and stop when it rings even if the brush is still full.
- Do 3 minutes of back and flanks, then 2 minutes of trousers and tail base; leave the belly for a cat that rolls over on its own.
- In the 14-day peak, use the rake twice a week, glove the sofa every 2 days, and wash bedding at 60 °C.
- Mark hairballs on a calendar: 2 within 2 weeks, or 24 hours refusing food, means a call to the clinic.
Terms mentioned in this article
Frequently asked
How long does spring shedding last in cats?
The heavy phase runs about 2 weeks and the whole coat turnover takes 3 to 4 weeks from the first loose tuft. Indoor cats under artificial light often shed on a flatter curve with 2 smaller peaks, so light hair loss can continue for another 2 to 4 weeks after the main drop.
Is it safe to use a deshedding tool every day?
No. A rake or deshedding blade cuts and pulls undercoat, so twice a week is the practical ceiling during the 14-day peak. Daily use across 2 weeks strips the insulating layer and leaves a patchy coat for 2 to 3 months; use a slicker or glove on the days in between.
When does a hairball mean a vet visit?
One hairball every 2 weeks in a cat that eats and stools normally is fine. Call the clinic for 2 or more in 2 weeks, a hairball followed by 24 hours without food, vomiting with no hair in it, or straining in the litter box for over 48 hours.