Cat looks shaved

They beginning to loose hair under their belly and back legs. My Tabby is having lots of hair loss on his side's. She was pregnant and after having her four adorable kittens lost all of her hair on her belly and inside of back legs.

It's most likely from the cat chewing at the hair, also known as barbering. Why does she look like she's shaved only on her hind legs and I never shaved her??.

It is important to have the cat shaved by someone who is experienced and can handle the cat in a way that doesn't stress the animal out. The most popular style .