Before You Get a Cat

9 Common Cat Myths Debunked

Cats aren't aloof, milk isn't good for them, and hypoallergenic breeds don't exist. The truth behind the most common cat myths new owners hear.

Updated · 3 min read · By the Cats Complete Guide editorial team

9 Common Cat Myths Debunked
On this page
  1. Myth 1: "Cats are independent and don't need people"
  2. Myth 2: "Cats can't be trained"
  3. Myth 3: "Milk is good for cats"
  4. Myth 4: "Hypoallergenic cat breeds exist"
  5. Myth 5: "Cats always land on their feet"
  6. Myth 6: "A purring cat is always happy"
  7. Myth 7: "Indoor cats don't need vaccines or vet visits"
  8. Myth 8: "Females should have one litter before being spayed"
  9. Myth 9: "Cats hide because they're unfriendly"
  10. Bonus: "Pregnant women must get rid of their cats"

Much of what people "know" about cats comes from folklore, cartoons and outdated advice. Believing these myths can cause real problems — from upset stomachs to cats who never get the social contact they need. Here are the most common ones.

Myth 1: "Cats are independent and don't need people"

Cats are more self-sufficient than dogs, but research on cat–human bonds shows that many cats form secure attachments to their owners, much like dogs and children do. They seek contact, recognize their owners' voices and can become stressed or bored when left alone for long periods. Independence varies by individual and breed; loneliness is real.

Myth 2: "Cats can't be trained"

Cats learn extremely well through positive reinforcement. They can learn to come when called, sit, high-five, go into their carrier, accept a harness and stop jumping on the counter — you just need the right motivation (usually food) and short sessions. What doesn't work is punishment. See clicker training and training without punishment.

Myth 3: "Milk is good for cats"

Most adult cats are lactose intolerant: after weaning they produce less of the enzyme needed to digest milk sugar. Cow's milk commonly causes diarrhea and stomach upset. Kittens need their mother's milk or a proper kitten milk replacer — not cow's milk. Fresh water is the only drink cats need. See cats and water.

Myth 4: "Hypoallergenic cat breeds exist"

All cats produce the main cat allergen, Fel d 1, which is found in saliva and skin secretions and spreads to the hair when cats groom. Hairless and curly-coated breeds may shed less allergen-coated hair around the home, and some individual Siberians or Balinese may produce less allergen — but there is no breed that is reliably safe for allergy sufferers. Always spend time with the specific cat first. See cat breeds for allergy sufferers.

Myth 5: "Cats always land on their feet"

Cats do have a remarkable "righting reflex", but falls still cause serious injuries — broken jaws, legs and chest trauma. Vets see so many falls from windows and balconies that it has a name: high-rise syndrome. Screens and balcony netting are essential. Read cat-proofing your home.

Myth 6: "A purring cat is always happy"

Purring usually signals contentment, but cats also purr when they're stressed, in pain, giving birth or even dying. It may be a self-soothing behavior. Always look at the whole cat — posture, ears, eyes, appetite. See cat body language and how to tell if your cat is in pain.

Myth 7: "Indoor cats don't need vaccines or vet visits"

Indoor cats can still catch viruses carried in on shoes and clothing, escape through open doors, or need boarding one day. Core vaccines are recommended for all cats, and yearly check-ups catch problems like dental disease, kidney disease and weight gain early. See vaccination schedule.

Myth 8: "Females should have one litter before being spayed"

There is no health or behavioral benefit to having a litter first. Spaying before the first heat actually greatly reduces the risk of mammary cancer later in life, and prevents unwanted kittens. See spaying and neutering.

Myth 9: "Cats hide because they're unfriendly"

Hiding is a normal coping strategy when cats feel unsafe — especially in a new home. Most new cats hide for a few days to a couple of weeks. Giving them a quiet space and letting them come to you builds trust faster than pulling them out. Read helping a new cat adjust.

Bonus: "Pregnant women must get rid of their cats"

Toxoplasmosis is a real concern in pregnancy, but it's usually caught from undercooked meat or soil, not from pet cats — and simple precautions reduce the risk from litter boxes. Most pregnant women can safely keep their cats. See cats, babies and pregnancy.