sir i have a dark spot o my shoulder blades and it doesn t itch .. I thought it had occured due to dirt and pollution and tried washing it off with soap and water but remained unsuccessful. And now it is spreading. It has a dark linning and is not fully brown. i mean i can still see my skin in the middle but it has a dark brown lining.
Hello, Welcome to Chat Doctor, Dark spots on your shoulder i.e. hyperpigmentation could be due to many causes like exposure to sun, fungal infection, eczema or any systemic disease. It's difficult to precisely say without examining. I advise you to consult dermatologist for proper diagnosis.  Regards