Female cats in heat usually become very vocal, extra affectionate, and “flirty,” with a distinctive hips-up, tail-to-the-side mating posture, plus restlessness and lots of rolling around. It can look dramatic and noisy, but it is a normal hormonal phase, not usually an emergency.

What “in heat” looks like

When a cat is in heat (in estrus), her behavior is driven by strong mating hormones.

Typical signs include:

  • Loud, persistent meowing or yowling that can sound like she is in pain.
  • Restlessness: pacing, not settling, acting agitated.
  • Very affectionate behavior: rubbing on you, furniture, and the floor far more than usual.
  • Rolling onto her back and sides, then popping up again.
  • Standing with chest low, rear end raised, back arched, tail held to one side (classic mating position).
  • Trying to get outside or seeking doors/windows where male cats might be.

Some cats also:

  • Urinate more often or even spray to leave scent signals.
  • Groom their genital area more.
  • Eat a bit less because they are so fixated on mating behavior.

Many owners say it feels like their calm housecat suddenly turned into a “noisy little drama queen” for a few days — lots of calling, posing, and demanding attention.

How long it lasts and how often

  • A heat usually lasts about 3–7 days, but can be a bit shorter or longer.
  • If she is not mated or spayed, she may go back into heat every couple of weeks during breeding season (spring–early autumn, sometimes year-round for indoor cats).

So if your cat is cycling, those intense behaviors can repeat frequently until she is spayed or becomes pregnant.

How it feels for the cat

Vets and behaviorists note that being in heat is not typically physically painful, but it is uncomfortable and stressful because of the strong hormonal drive to mate. She may seem:

  • Frustrated and unsettled.
  • Easily startled or clingy.

Keeping her indoors and away from males is important to avoid accidental pregnancy and the risks that come with it.

What you can do to help

While you cannot “switch off” a heat at home, you can make her more comfortable until it passes:

  • Provide a quiet, safe room with soft bedding and a litter box.
  • Play gentle, interactive games if she wants distraction, but don’t force it.
  • Use calming aids (pheromone diffusers or sprays recommended by vets) to help reduce stress.
  • Keep windows and doors securely closed so she cannot slip out.

The long-term solution to repeated heats is spaying, which prevents future cycles, lowers the risk of certain cancers and uterine infections, and usually makes life calmer for both cat and owner.

TL;DR: A cat in heat will call loudly, act extremely affectionate and restless, roll and arch her back with tail to the side, may spray or over- groom, and often tries to escape to find a mate.

Information gathered from public forums or data available on the internet and portrayed here.