Is it normal for a neutered dog to drop second set of testicals?

No, it is not normal for a neutered dog to drop a second set of testicles.

Here's why:

* Neutering: Neutering involves surgically removing both testicles. This procedure permanently prevents the dog from producing sperm and eliminates the hormones responsible for testicular growth.

* Cryptorchidism: Some male dogs are born with one or both testicles undescended (cryptorchidism). In such cases, a veterinarian may recommend surgery to remove the undescended testicle(s).

* Misunderstanding: It's possible that you may be observing something else, such as a swollen lymph node or a skin growth, that resembles a testicle.

If you're concerned about your neutered dog, it's best to consult with your veterinarian. They can examine your dog and determine the cause of any unusual swelling or growth.