Is thin lip hair and visible skin normal for my Shih Tzu puppy?

Lesions like this could be due to an injury, skin infection or the beginning of allergies. Protect the area from any rubbing by having Basil wear an elizabethan collar at all times. You can use a pet wipe and gently cleanse the area once a day. The problem with this area is that topical treatments are generally ineffective since pets just lick off whatever you put on it. This lesion may heal on it's own. If it does not start improving after a few days or if it starts getting worse at any point, have Basil examined by the veterinarian. I hope this helps and please feel free to post any additional questions.

Thank you for submitting your question regarding Puffy. I do not believe that her hair coat indicates any disease process. Rather it is likely result of her genetics. What breed was her father? My guess is that her appearance is closure related to him than the other pups. I hope this information helps!

It looks like depigmentation. It is nothing to worry about and also nothing you can do about. It may stay like this, it may progress and more skin on Hazel's chin will become pink rather than dark/black.

Yes, these markings are most likely quite normal, especially if there since birth. Rarely in puppies, color loss can develop due o fungal or bacterial infections monitor for any hair loss, discharge or redness

Thank you for submitting your question regarding Piper. I recommend that she sees a veterinarian. Skin disease can be frustrating as many diseases can appear similar. Common cause of hair loss include mites, ringworm and allergies. An allergy can be to something in her diet, environment or even fleas. The veterinarian will examine her and ask questions about her lifestyle. Skin testing may be recommended. Based on these results, treatment can be started. I hope this information helps!

No need to worry too much yet. In such a young dog it is highly improbable that anything too terrible is wrong. In all honestly, it is very hard to make a diagnosis of dermatologic issues without actually feel the lesion, and / or collecting some diagnostic samples. At first glance, they look like eosinophilic plaques (otherwise known as rodent ulcers), which are actually much more commonly seen in cats. Since you are seeing these lesions on both sides of the mouth, it's also possible that this is something anomalous but normal in your dog. Another possibility is that your pup could have bit onto something that cause some irritation, and it is now causing something wrong symmetrically. If the areas aren't getting large and are not bothering your dog, my advise would be to leave things alone for the time being to see if there is any change. However, it wouldn't be wrong to take your dog to the vet now to have him checked over. Hope this makes sense!

It does look a little irritated there. That could be caused by irritation from a muzzle or face halter, or could be regular allergies starting up. I would recommend keeping the area clean and dry, for now. If it's not getting better after 3-5 days, I'd recommend a vet visit to see if she needs most medicated wipes. It's common for young dogs to get superficial bacterial infections around their lips, which usually doesn't require oral antibiotics, but may require a topical treatment. I hope that helps! If it goes away and comes back right away or even next fall, you'll know it's allergies and can start a conversation about that with your vet. Good luck!