A clean body is a healthy body. This goes for any of your dog’s body parts, including his privates. His sanitary area should be kept rather clean to avoid infections or discomfort when going potty. Whether you’re waiting for bathtime or cleaning outside of bathtime, your dog’s private areas will need to be cleaned on a regular basis or when they are especially dirty.
Many owners notice their dogs self-clean their genitals, but there will be times you may need to clean them yourself. Female dogs in heat might require a gentle wipe, and male dogs might require a cleaning every so often as well, but mostly due to playtime dirt and not for health or sanitary reasons.
Your puppy probably doesn’t care a whole lot about how clean the sanitary areas are. He just wants to play and eat and sleep and take care of his necessities such as going potty. Just like for bathing or other grooming tasks, you might need to wrangle him down to get him clean but he’ll be happy once it’s all done.
You’ll want to keep your puppy’s privates your business so they can stay clean and healthy. Your puppy may clean and maintain them all alone, but a healthy dog is one who trusts his owner to care for this as well. Pay attention to any odd signs of trouble and clean as usual.