I've got a really big dog and I'm curious about his anatomy. What's considered normal when it comes to the size of a dog's penis, specifically for larger breeds? Just want to make sure everything's okay.

Hi there! It’s great that you’re taking an interest in your big guy’s anatomy. For large dogs, it's pretty normal for their penises to vary in size, but the sheath (the skin that covers it) is usually what you'll notice most of the time. When he's relaxed, you might not see much except for the sheath. When he's excited or anxious, the penis might extend out, and this is normal.

Here are a few signs that everything’s okay and when to be a little more cautious:

• Normal: Occasionally seeing the penis emerge, especially during excitement, isn't concerning unless it doesn’t retract back into the sheath. This is a condition called paraphimosis and needs attention if it doesn’t resolve quickly.
• Watch out for: Discoloration, swelling, lesions, or discharge other than clear fluid. If you notice anything unusual, it could mean there’s an infection or injury.
• Urgent: If his penis is stuck outside and looks dry, swollen, or discolored, that’s an emergency. This can cut off circulation and needs immediate veterinary help.

At home, if you notice mild irritation or he’s licking excessively, you can gently clean the area with a damp cloth and monitor him for any changes. Try to keep him from licking to avoid further irritation. However, if you notice any severe symptoms, give your vet a call.

If you're unsure or your pet’s symptoms worsen, it's best to book a call with a vet on Dial A Vet for professional advice.