Why do dogs testical come out?

It's important to clarify that a dog's testicles don't actually "come out" in the way you might be thinking.

Here's a breakdown:

* Normal development: In male dogs, the testicles develop inside the abdomen and descend into the scrotum, a pouch of skin located between the hind legs, typically by the time they are 6-8 weeks old.

* Cryptorchidism: Sometimes, one or both testicles may fail to descend into the scrotum. This is called cryptorchidism.

* Visible testicles: The testicles are located within the scrotum, which is visible between the hind legs.

So, to answer your question more specifically:

* The testicles descend into the scrotum, they don't "come out" in the sense of suddenly appearing.

* If a dog has cryptorchidism, one or both testicles might remain in the abdomen, which is an abnormal condition.

Important Note: If you have concerns about your dog's testicles, it's always best to consult a veterinarian for professional advice.