Which medical field studies the skin, its nature, structure, functions, diseases, and treatment?

• A. Mitosis
• B. Sebum
• C. Dermatology
• D. Lanugo hair

Answer: (C)

Dermatology is the medical field that studies the skin, its structure, functions, diseases, and treatments. This makes it the best fit because the question aims to identify the specialty dedicated to understanding and managing everything about the skin, from anatomy and physiology to clinical care of skin disorders. Dermatology also encompasses related structures like hair and nails and covers diagnostic approaches and treatment options for skin conditions.

Mitosis is the process of cell division, not a medical specialty. Sebum is the oily secretion produced by sebaceous glands. Lanugo hair refers to fine fetal hair. These serve as helpful context for what dermatology studies, but they are not the field itself.