Dermatology is a branch of medicine that focuses on the diagnosis and treatment of skin, hair, and nail disorders. Dermatologists are medical professionals who specialize in this field and can address a wide range of conditions, including acne, eczema, psoriasis, and skin cancer. They also perform various procedures, such as skin biopsies and cosmetic treatments. In addition to treating diseases, dermatology encompasses the study of skin health and aesthetics. This includes understanding the effects of sun exposure, aging, and environmental factors on the skin. Overall, dermatology plays a crucial role in maintaining skin health and enhancing appearance.