If you've ever had a cat snuggle up in your lap for a nap, you know that she'll push her paws up and down until she's found the perfect spot, but why do cats knead?
Cats display seemingly odd behavior at times, as pet parents soon discover. Cat kneading is one of the most common and perhaps one of the most misunderstood of these distinct behavioral traits—no one can say exactly why cats knead their human family members, but there are some compelling theories out there.
First of all, what is cat kneading?

A cat kneads in much the same way a baker works bread dough, using a pushing motion with her front paws, alternating between left and right. In fact, the act of cat kneading commonly is referred to as "kneading dough" or "making bread/biscuits." Not all cats knead, and some cats do so infrequently. She may even bite at the sheets or blanket while kneading. Each cat is unique in her habits.
Are you my mommy?
One of the most widely held beliefs is that domesticated cats retain their kitten instincts. Kittens knead their mothers to stimulate milk production for nursing, and as PetMD explains, "even though kneading a soft surface doesn't yield milk, adult cats forever associate the motion of kneading with the rewarding comfort of nursing." Kneading a human, therefore, might be a cat's way of showing her love and affection for you. Despite being a full-grown adult cat, your fur baby remains just that—your baby.
Can there be too much kneading?
In addition to kneading as a way to show affection, a cat may knead as a way to self-soothe, too, because it can provide a great comfort. But is it too often? If she's alone for long period of time, for example, she'll amp up the kneading when you are home, says Petcha, so "try spending more one-on-one quality time with her. Play with your cat, brush her, or just hold her and talk to her in a loving tone of voice every day." This will help her to de-stress.
If your cat begins kneading obsessively, it may be a sign that something with her is amiss, in which case you should contact your veterinarian.