My dog has a new inch-wide spot. Is it serious if he's not distressed?

Thank you for the picture of Chipper's lesion. It appears to be a black fly bite. These lesions from the bite look bad, but typically they do not bother the pet. You don't need to do anything to treat it, these usually go away on their own over time. That being said, if this doesn't improve over the next week, it looks worse, or he's constantly itching it, then he will need to see a vet. I hope this helps!

That looks like an insect bite that may be infected for it to have a focal light spot in the center. If she seems fine otherwise you can opt to keep an eye on it and make sure it continues to improve. If it does get bigger, if she becomes lame, acts sick, refuses to eat or starts vomiting or has diarrhea, get her in to see your vet right away as there may be something more serious going on.

This could just be from an injury. Keep an eye on it, and if it doesn't go away over the next couple of days, it gets bigger, and/or it starts to bother Stella, then I would take her into the vet. Best of luck.

It doesn't appear to be related to fleas. It could be an injury but it could also be the start of a tumor. I would recommend you leave it alone and monitor it for about a week. Don't pick at it or apply anything to it. If it is just a scab from an injury it should be much improved if not all the way healed in that time frame. If it is virtually the same or just a tad bit improved then I would have your vet check that spot out. Hope this helps. Best wishes.

This is probably a bug or fly bite. They are quite common this time of the year. Monitor for resolution in a couple days. There is likely no cause for concern unless Pickle develops lethargy, fever, loss of appetite or pain.

It is hard to say what it is without seeing and examining your dog. It may be just de-pigmentation of the nose, potentially it could be a form of superficial infection. As long as your dog is not bothered by the change, is bright, is eating and drinking as normal it should be safe to wait until your vets re-open for consultations.

There is no way to diagnose this via a photo, I am afraid. Only a hands-on exam in combination with a brush sample or a swab can help identify whether this is a fungal or bacterial lesion or a sting or bite. I would observe it over the weekend, and should it increase in size, start to ooze or change in appearance other than fade, you should have a veterinarian examine this lesion. there is no one treatment for all these causes. Do not put any ointment on it , just observe it.