How common are dark patches on skin in sun spots?

Sun spots are areas where pigment becomes more concentrated after repeated light exposure. They are often flat, tan to brown marks on exposed skin such as the face, hands, shoulders, chest, or forearms. Individual marks can differ in shade and size. A dark patch may have another explanation, so appearance and history are considered together rather than relying on colour alone.

Use sunscreen on exposed skin and add shade, clothing, or a hat when possible. Avoid harsh scrubbing and do not try to burn, peel, or abrade a spot away. If you want to reduce its appearance, a dermatologist can check it first and discuss suitable topical or in-clinic options. Protecting the area helps limit further darkening and new spots.

Have a mark examined if it changes in shape, border, colour, or surface, or if it becomes itchy, tender, crusted, or prone to bleeding. Arrange assessment when one patch looks noticeably unlike the others. These changes do not identify a diagnosis by themselves, but they deserve a clinician’s review rather than cosmetic treatment first.

Ask whether the mark has features of a sun spot, whether it needs monitoring, and which treatment choices fit its location. Ask how to protect your skin daily and what specific change should bring you back sooner.