Dermatology is the branch of science which gives treatment for diseases of hair, nails and skin. There are hundreds of skin conditions that affect humans. The ailments related to them are termed as dermatological diseases. A dermatologist treats illnesses, in the widest sense, and a few beauty issues of the dermis. Some of the dermatological diseases are Aagenaes syndrome, Aarskog syndrome, Abdominal chemodectomas with cutaneous angiolipomas, Absence of fingerprints congenital milia, Acanthosis nigricans, Ackerman syndrome, Acquired generalized lipodystrophy, Acral peeling skin syndrome, Acrodermatitis, Acrodermatitis enteropathica, Acrogeria, Gottron type, Acrokeratoelastoidosis of Costa, Actinic lichen planus. Acute febrile neutrophilic dermatosis. Skin cancer and malignancy of epithelial cells, Contact dermatitis, Psoriasis, Rosacea, Cellulitis, Viral skin diseases. Dermatological problems are either intrinsic abnormalities or derangement of normal processes related to skin hair and nail.