A dermatologist can diagnose and treat conditions that affect your skin. This includes conditions like plaque psoriasis, rosacea, and acne. A dermatologist can also identify symptoms on your skin that could be signs of other health conditions. For example, itchy, dry skin can sometimes indicate problems with your kidneys.

Surgery. Many dermatologists do minor surgery, like removing moles or warts or doing skin biopsies. Other dermatologists will specialize in more extensive surgery. These procedures can include removing benign cysts or skin cancer.