Male cats usually start to grow small eggs in 2 months. When the kitten grows to 6-8 months, the egg is fully developed. At this time, the male cat will begin to enter estrus, so if you don't want to let the male cat estrus, you can take it to sterilization at 6-8 months.
If the male cat hasn't seen two balls by 4 months, it may be cryptorchidism.
If the cat is cryptorchidism, it needs surgery. There are two kinds of cryptorchidism in general male cats, one is in the abdominal cavity, and the other is not in the abdominal cavity but can't find the normal position of the scrotum. Common is unilateral cryptorchidism.
Cryptorchidism is very harmful and easy to cause testicular diseases. Male cats with cryptorchidism need to have their cryptorchidism removed
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