Enlarged cat nipples are a sign of pregnancy. When a female cat is pregnant for about 20 days, the color of her nipples will gradually turn pink and her breasts will enlarge. After three weeks of pregnancy, the breeder can slowly turn the cat over and carefully observe the cat’s nipples. However, other possibilities cannot be ruled out. If the owner has not bred the cat, but the cat has enlarged nipples and abdominal girth, it may also be caused by hormonal disorders in the cat's body and pseudopregnancy. It may also be acute mastitis in cats. The main pathogens are Streptococcus and Staphylococcus. The infection and suppuration in the breasts can cause breast abscesses and cause breast enlargement.

Causes for enlarged cat breasts:

1. The female cat is pregnant. When a female cat is pregnant for about 20 days, the color of her nipples will gradually turn pink and her breasts will enlarge. After three weeks of pregnancy, the breeder can slowly turn the cat over and carefully observe the cat’s nipples.

2. False pregnancy in female cats. If the owner has not bred the cat, but the cat has enlarged nipples and abdominal girth, it may also be caused by hormonal disorders in the cat's body and pseudopregnancy.

3. The main pathogens of acute mastitis in female cats are Streptococcus and Staphylococcus. The infection and suppuration in the breasts can cause breast abscesses and cause breast enlargement.