human
I've noticed some dark spots on my skin. What could this be?
assistant
This could be a sign of acne, which is caused by bacteria that live in the pores of your skin and produce oil. Acne can cause redness, swelling, and blackheads or whiteheads. You may want to try using an over-the-counter acne treatment such as salicylic acid or benzoyl peroxide to help reduce the appearance of acne.