I have a blackish brown spot under my breast i don t know when it showed up because my boyfriend is the one who spotted it it doesn t hurt or itch or anything but it s very soft should i see a doctor ?

Dark spots: Skin often changes color or texture in response to a loss of moisture or hormonal shifts. Dark, flaky patches of the skin can relate to a multitude of possible causes, according to the american academy of dermatology, including viral infections. However, dark patches of skin around the breast that grow or continue to change shape require an immediate visit to your physician, as they may be cancer.