What does dermatology look at?

The dermatology department mainly looks at skin diseases. There are as many as 2,000 - 3,000 types of skin diseases according to various types, as well as sexually transmitted diseases. Therefore, it is currently called the dermatology and sexually transmitted diseases department, such as sexually transmitted diseases, such as syphilis, gonorrhea, Condyloma acuminatum, AIDS, and herpes simplex are also seen in the dermatology department. Any skin phenomena, such as redness, papules, pustules, bullae, crusts, itching, and pain, are all related to genetics, metabolism, immunity, infection, some allergies, etc. Diseases involving skin, nails and hair belong to dermatology.