Male cat has circular bald patch on belly area - please help!
I have a two-year-old indoor male cat (desexed). I noticed this bald patch in the belly area today and not too sure what it is. He is not in pain and the skin is not red or broken.
It is on his left where I think the nipple is supposed to be so I am not too sure if there is just not a nipple or what it is. The nipple on his right side is prominent and same with his other ones.
This patch just looks bald and flat. Please see the pictures attached. Greatly appreciate advice, thanks.