Dermatology is the branch of medicine that deals with the skin and all its disorders. The skin is the largest organ of the body and has many functions, including protection against external agents, regulation of body temperature, sensation, synthesis of vitamin D, and excretion. Skin diseases are among the most frequent reasons for people to consult a physician.
The study of dermatology dates back to ancient times when physicians first began to treat skin diseases. In modern times, dermatology has evolved into a medical specialty that uses both medical and surgical techniques to care for patients with skin disorders.
There are many different types of skin disorders that can be treated by a dermatologist. Common conditions include acne, eczema, psoriasis, rosacea, vitiligo, and melanoma. Dermatologists also treat rarer conditions such as ichthyosis vulgaris and porphyria cutanea tarda. In addition to treating these conditions, dermatologists also provide cosmetic services such as botox injections and laser hair removal.