What is this suspicious scab or crust I found on my dog's paw?

This presentation could be due to a trauma (possibly presence of a small foreign body) or localized spot of skin infection (likely to be caused by bacteria). A check up, appropriate disinfection and possibly antibiotics (oral, topical or in a shampoo formulation) are needed to solve the problem. Disinfection may be started at home with very diluted hibiscrub or betadine or salted water baths. Buster collar may be useful as well to avoid any licking. . Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

The wound looks puffy from the photo (but I would need to palpate it to know for sure). The crusty area next to it could indicate another wound that is scabbed over or it could indicate a bacterial infection or ringworm (which humans can get). Your best option is to have Sophie examined by the veterinarian in case the wound is infected. She would be placed on antibiotics if that is the case. They could also test her for ringworm if it looks suspicious on exam. Make sure to protect the wound from scratching or licking. Sophie may need to wear an elizabethan collar if she can lick the area. A doggie shirt can help protect it from scratching. You do not want to disrupt the scab (it's nature's bandaide). I hope this helps and please feel free to post any additional questions.

This could be due to an infection and possibly a foreign body reaction. A clinical examination at your local veterinarian is essential to confirm these clinical suspicions and treat appropriately. Antibiotics may be needed. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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.

This presentation could be due to a trauma or localized spot of skin infection (likely to be caused by bacteria). A check up, appropriate disinfection and possibly antibiotics (oral, topical or in a shampoo formulation) are needed to solve the problem. Disinfection may be started at home with very diluted hibiscrub or betadine or salted water baths. Buster collar may be useful as well to avoid any licking/scratching (if any). Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

It looks a little red and inflamed so it could be an infection. You could soak his paw in a warm Epsom salt solution and see if that helps. Otherwise, have your vet take a look at him as he may need an antibiotic to treat the infection.

Ouch! With any new growth like this, it's best to have your vet take a look in person, as it isn't really possible to determine what is causing the growth just from a photo. Your vet can take a sample of the growth as needed with a fine-needle aspirate, or biopsy, to check what cell type is present and if the spot needs further attention. Other causes can be calluses from rubbing, scabbing from a wound or infection under the skin, or other issues. Until you can get to the vet, it's best to keep the area clean and dry and prevent Ginger from licking or chewing at it with an Elizabethan (cone) collar or sock over the spot. Monitoring it for any additional changes such as size, oozing debris, pain, etc, is also a good idea as these observations can help your vet narrow down the cause and best treatment plan.