Why are my cat's nipples enlarged and different colors if not pregnant?

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! If Khloe has been in heat and goes outdoors unobserved or lives with an intact male cat then she could be pregnant. I can’t tell by the picture because the nipples look relatively normal to me. Hormones can make them pinker and longer. Normal pregnancy lengths in cats is 60-63 days. I hope this helps!

It is very possible that the pigment around her nipples are a normal variation. However, if the sizes of Cindy's mammary glands differ or if you feel any hard lumps (even tiny ones) near her nipples, she should be examined by a vet.

If Tasha miscarried her kittens, there would have been a bloody discharge. A cat's nipples will become pink when she is in heat and will turning to normal when she is out of heat. You wouldn't see nipple changes due to pregnancy right after mating, that takes time. It's likely that the color change and swelling you noted were due to her being in heat. In a few weeks, I would take Tasha into the vet to confirm if she is pregnant or not.

Thanks for using Petco Pet Education Center, formerly Petcoach! Yes, swelling or enlargement of the mammary glands is commonly observed when they are in heat so this is likely normal in Sarabi. No need to be concerned. Good luck and have a good night!

Hello, mammary chain development does not occur until very late in pregnancy. As she is nearing labor, she will begin to produce milk and her mammary glands will become enlarged. Her nipples will get big with the nursing. You should not be concerned at the moment. Make sure she has access to adequate amounts of water at all times. Hope this helps and best of luck.

Yuki's nipples and mammary glands look like those of a pregnant cat. I see that she has not been spayed, so if she got out of the house or has been around ANY intact male cats, I think it's most likely that she's pregnant. If there is absolutely no chance that she's been around any intact male cats, then there is a chance that her body is going through a pseudopregnancy. These false pregnancies can occur due to hormonal imbalances after being in heat and usually last a little over a month. It would be best to have Yuki examined by her vet to determine if she is or is not actually pregnant in order to help you plan for her care. I hope that everything goes well!

Hello, thank you for using Petco Pet Education Center, formerly Petcoach. This mass looks pretty serious. Any type of color change, especially dark like this one, makes us suspicious of cancer. I suggest you take her to your vet for an exam. Likely this mass will need to be surgically removed and sent to a laboratory for histopathology testing. I don't mean to scare you but I don't think this is something to ignore. I hope this helps. Best wishes.