Photosensitivity is a term used to describe a group of skin problems that are caused by an abnormal reaction to UV (ultraviolet) radiation. Photodermatoses are skin disorders that are brought on by sun exposure. Based on the aetiology, they can be divided into four groups: Idiopathic photodermatoses, Genetic photodermatoses, Exogenous photodermatoses, and Metabolic photodermatoses. These are some of the most common types of photodermatoses. Photodermatoses are not life-threatening, but they can be extremely painful. Treatment is just as vital as prevention. A thorough medical history and physical examination are required to diagnose photodermatoses. Clinical suspicion is frequently confirmed by phototesting, bloodwork, and skin biopsies.