What is this black scab-like lump on my dog's back under the fur?

If this just appears to be a crusted area and is not raised, it is possible this was an insect bite that got irritated or a small scratch/wound. If the lesion is raised (I can't really tell from the appearance) then we sometimes get warty skin growths that can get traumatized and bleed/crust over. I would wash the area with a mild soap or Hibiclens (available at most drug stores) and apply a topical antibiotic like Polysporin or Neosporin a few times day. If she is scratching/rubbing at the area she may need an e-collar for a few days to stop self-trauma. If the lesions isn't improving after several days of this or it starts to get larger/other spots appear then these would be reasons to seek veterinary care.

Thank you for submitting your question regarding Charlie. I recomend she sees her veterinarian. The lesion could be an infection or a a mass that has developed. Depending on her exam findings, the veterinarian may perform a procedure known as a fine needle aspirate. A small needle is used to collect a sample of cells and evaluate them under the microscope to diagnose the lesion. This will help to guide treatment. In the meantime, you can try bathing her with a moisturizing shampoo and conditioner such as an oatmeal or fatty acid based formula. I hope this information helps!

It's quite possible that the little bump on Booboo's back is a cyst. While most cysts are benign (especially ones in young dogs), their size can fluctuate as they fill with fluid, rupture, then refill. When cysts rupture, they can cause little crusts or scabs on the surface of the skin. These lesions can become infected if a dog licks or scratches at the area, but most of the time, they don't cause any problems. I don't see evidence of infection in the picture. For now, I think it's reasonable to keep an eye on the area for changes. If you want to clean it with an antiseptic to err on the side of caution, Hibiclens and betadine are both good over the counter options, but be sure to rinse well afterwards. Unless this lesion gets larger, has more discharge, or irritates Booboo, I don't think you need to take a trip to the vet for this lesion alone. That said, be sure to mention it to your vet the next time Booboo is due for an exam so that they can check it out. I hope that everything goes well!

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.

It would be helpful to see a picture of the lesion (you can submit photos by selecting "consult online" below your answer), but without seeing it I'd say that it could be a rupturing cyst, a foreign body (depends on where on the body it is - very common on the feet), or a tumor (mast cell tumors can get inflamed and scab over - histiocytomas do as well). If it's been there a couple of weeks, it's probably time to have it looked at in order to figure out exactly what it is. Bulldogs are prone to mast cell tumors, and they can be quite serious if not removed.

Hello. I do not think this is a tick, so it could be a scab. It could also be a small skin tumor, so if this does not seem to be healing over the next couple of days, it would be best to let your veterinarian take a look. It is sometimes very difficult to diagnose something from just a picture, but a quick visit with your veterinarian can confirm exactly what this is. Best to you & Loki & thanks for contacting JustAnswer.

This is likely a tumor that needs to be examined and possibly removed by your veterinarian, since it keeps growing back. Please take your dog to your vet soon,. The vet will likely want to do a Fine needle aspirate to determine what type of mass it is and whether it needs to be removed.