My dog's stomach is getting dark. Is it normal or needs treatment?

This looks like hyperpigmentation. It typically occurs in lightly pigmented, sparsely haired regions as dogs get older. It can also be caused my inflammation so just make sure she is not spending too much time sunbathing and that there are no other signs like licking/scratching/lesions. I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!

Thank you for submitting your question regarding Daisy. She appears to have normal pigment variations on her abdomen for her breed. If one isolated area becomes very dark or she develops a raised mass, she will need to see her veterinarian. Otherwise, I cannot make out anything abnormal from your pictures. I hope this information helps!

Thank you for asking the question about Harley. If she is not itchy then it may just be pigment change to her skin. Lots of breeds can have changes to their skin and Hair coat as they mature. If you happen to have before and after pictures to post in another question that may be helpful. Is she is itchy, or the skin has wounds or crusting then she should be evaluated by a veterinarian. Best of luck and thank you for using Pet Coach.

The pictures look like it could just be normal pigment change. As puppies mature their pigmentation can as well. If the skin is raised, thicker, crusty, or itchy then I would be concerned. If you have any concerns then I would encourage you to have him evaluated by your veterinarian. If there is a concern then a biopsy could easily be done at the time of his neuter. Best of luck and thank you for using Pet Coach.

That may be just normal pigmentation changes. If the skin feels, or looks rougher than normal, if there are scabs or if she itches those areas then I would be more concerned. I hope this was helpful!

Thank you for submitting your question regarding Gola. The dark spots on his belly appear to be normal pigment changes. This is common in white haired dogs. There will be multiple darker spots on the belly. The spots can grow, change and fade as the dog ages. They are flat with the skin, there is no redness and they do not bother the dog. If this seems to be the case for him, testing should not be needed. This is not a cause for concern. If the bumps are itchy or develop scabs, then this is different and could indicate an infection. I hope this information helps!

This may be a natural pigment change as he develops or may be related to a skin irritation such as from demodex mites or a yeast infection. If there is no heat, discomfort or itching of the area continue to monitor closely - your vet or vet nurse could take a look to put your mind at ease and advise if any investigation or treatment is recommended