re: OT Vets - dog related (gross)

I'm about to graduate with an animal science degree and have worked at vet clinics the past few summers. I think the pup may have been neutered much too early. I was taught to neuter when the animal is sexually mature (4-7) months. The testes don't produce testosterone until this age. The premature removal of the testes most likely caused a hormone imbalance that has continued to this day. Hormone treatment should be able to fix this. Once again I'm not a vet, but this is most likely the problem.