Dermatology is the a branch of medical science dealing with the
skin, its structure, functions, and diseases. Dermatologists
specialize in diagnosing and treating conditions related to the
skin, hair, and nails, including concerns related to cosmetic
issues, such as sun damage and aging, as well as skin cancer,
and other medical skin conditions. Dermatologists who have
additional interest and skill in performing surgical procedures
are referred to as dermatologic surgeons or dermasurgeons.
Specialty terms like "dermatologist" and "dermatologic surgeon"
are often unregulated and may be used in some states by any
doctor, regardless of their training and credentials. So, for
instance, a doctor who has an active medical license and is
board certified in Internal Medicine but who has not undergone
any specialty training in dermatology may refer to him or
herself as a dermatologist or dermasurgeon, despite the fact
that their training and credentials may not reflect
specialization in this area of medical practice.