Skin cancer runs in my family.  I am also a type one diabetic. I had a lesion on the underside of my breast, it has now turned dark brown and keeps growing.  Also, I had a red itchy mole on my back that has now turned brown and starting to grow.  Could this be skin cancer or should I not worry?
Thanks for your question on Chat Doctor. I can understand your concern. Yes, these skin lesions cancer be due to skin cancer. But better to first consult dermatologist and get done clinical examination of these lesions. Since you are having type 1 diabetes, skin infections are very common due to lower immunity in diabetics. So we need to rule out skin infection first. You may need skin biopsy and histopathological examination for the diagnosis of cancer. So consult dermatologist and discuss all these. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.