What are these unbleeding skin lesions on dog's paws, legs, chest?

Without further testing, there is no way to tell if this lesion is due to infection, trauma or allergy, or if it is a mass. Masses can be of a malignant (cancerous) type that can spread elsewhere and/ or invade the healthy tissue around them, or a more benign (noncancerous) type that is unlikely to spread. Cancerous types of masses are far less common than benign ones, but I recommend making an appointment for Chaos to see your vet to have the growth tested and to guide treatment. See the link below for more information on one of the more common types of masses that can look like what Chaos has on his leg. https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4952215

Lesions that look like that are commonly bacterial infections, ringworm (which humans can get) or skin mites. A trip to your veterinarian is the best way to determine the underlying cause and provide appropriate treatment fast. Best of luck and please feel free to post any additional questions.

Obviously I can't definitively determine the cause of Fabulous's skin lesions without examining him and taking a biopsy sample. However, looking at the pictures, some of the most likely causes of this type of lesion include papillomas, over production of keratin, or benign skin tags. It would be best to have this lesion examined by your vet. Some lesions that stick out can get caught on objects, causing the area to bleed and potentially become infected. I hope that everything goes well for Fabulous!

Thank you for posting the pictures as they are very helpful. I am concerned that these skin lesions look like an infection. It could be bacterial or fungal such as ringworm. I would highly encourage you to have them evaluated by your veterinarian soon. In the meantime please practice good hygiene after handling them as ringworm is contagious to people as well. Best of luck and I hope they improve soon. Thank you for using Pet Coach.

It is possible that these lesions are caused by an allergic reaction, but it could also be caused by an infection, puppy pyoderma (small pustules that aren't caused by infection), mites, ringworm, among a few others. I would recommend that NaNook get checked out by a vet to determine the cause so that he can get appropriate treatment. The vet may recommend a medicated shampoo like Dechra MalAcetic Ultra which can help with simple bacterial or yeast infections.

His chest seems worse than his feet in those photos! an allergy is vet likely but for joe t seems it may be infected also. If you can't get in before next week you can try a medicated shampoo twice a week to help clean and rinse the skin and wipe the feet down after coming in from outside. You can apply a medicated powder between the Toes to help and give an antihistamine such as Benadryl.

The front paw may be an abrasion or minor infection. The same could be said for the hind limb. You would need to have Raven physically examined by your veterinarian for confirmation and treatment. If she is licking or chewing, place an e-collar (cone) on her. You can clean the areas with diluted betadine or chlorhexidine (Hibiclens) solution daily. A foot soak may be of benefit. If the spots don't resolve or worsen or if she becomes lame, definitely have her examined by your veterinarian.