Dermatology is the branch of medicine dealing with the skin, nails, hair and its diseases. ... A Dermatologist treats diseases, in the widest sense, and some cosmetic problems of the skin, scalp, hair, and nails.
The skin is the largest organ of the human body, and one of the most complex. Its main purpose is to protect the internal organs from harmful external influences, such as bacteria, viruses, allergens, disease, sun, wind and rain. The skin also often serves as an indicator of underlying problems with internal organs.
What is a dermatologist?
A dermatologist is a medical doctor who has been certified by a recognized board of dermatology as a physician specializing in the diagnosis and treatment of skin, hair and nail conditions and diseases. Functions of dermatologists include diagnosis, prevention through education and examination, surgery and cosmetic procedures to improve the appearance of skin damaged by sunlight, aging, disease or other causes.