Dermatology is the branch of medicine concerned with the skin, hair, nails, and their disorders. It includes areas like cosmetic dermatology, pediatric dermatology, dermatopathology, Mohs surgery, laser therapy, hair transplantation, and treatments like radiation therapy, cryosurgery, phototherapy, and photodynamic therapy. Common dermatological disorders mentioned include psoriasis, skin cancer, eczema, alopecia, acne, and rashes. Causes of skin disorders include heavy sun exposure, vitamin deficiency, improper diet, environmental factors like pollution, and unhygienic conditions or habits. Prevention involves using sunscreen, keeping clean, eating hygienic