Why Do Cats Shed So Much Hair?

“Just put on a black shirt, and after holding the cat, it’s covered in white fur.” “When brushing, the comb is full of hair, like half a cat came off.”

Cat owners know shedding is part of daily life. Normal shedding is natural, but if hair loss increases suddenly, or bald spots and a rough coat appear, it may not be just “seasonal shedding.” To manage shedding, we must tell the difference between normal shedding and abnormal shedding, then find the root cause.

1. Normal Shedding: Seasonal and Age-Related

Almost all cats shed. The main natural reason is seasonal shedding: In the spring, cats shed their thick winter fur and grow lighter summer fur. In autumn, they lose their summer fur and grow winter fur again. This usually lasts 1–2 months. Age also plays a role. Kittens (3–6 months) lose baby hair and grow adult fur. Senior cats shed less, but their hair may become dry and break easily.

Breed differences matter: long-haired cats shed more than short-haired cats; hairless breeds don’t shed, but need skin cleaning.

Normal shedding is even across the body, with no other health problems.

2. Diet Problems: Poor Nutrition Increases Shedding

Hair is made of protein. If cats eat low-protein food, their hair becomes weak and falls out easily. Choose cat food with 28–35% protein, or add cooked chicken, beef, salmon, or egg yolk. Lack of Omega-3 and Omega-6 fatty acids makes skin dry, itchy, and fur dull. Add fish oil, flaxseed oil, or special supplements. Avoid human food high in salt, oil, or sugar. Make sure cats drink enough clean water.

3. Daily Care Issues: Grooming and Bathing Mistakes

Shedding gets worse if grooming is not done properly. Brushing removes loose hair and prevents knots. Long-haired cats need brushing 2–3 times per week; short-haired cats at least once.

Use the right tools: long-haired cats → needle comb + rake comb; short-haired cats → rubber brush + needle comb.

Avoid frequent baths. Too much bathing or using human shampoo damages skin and increases shedding. Always use pet shampoo and dry fur completely.

4. Health Problems: Shedding as a Warning

If your pet suddenly starts shedding a lot, develops bald spots, red skin, or keeps scratching, it could be a sign of a health problem. Common causes include skin issues like ringworm, mites, or allergies; hormonal problems such as thyroid or adrenal disorders; or even stress from changes like moving to a new home, the arrival of another pet, or being left alone too often. If you notice these symptoms, it’s best to take your pet to the vet for a checkup.