What is the branch of science that focuses on the hair, its diseases, and its care?

• A. Trichology
• B. Dermatology
• C. Anatomy
• D. Physiology

Answer: (A)

Trichology is the branch that focuses on hair and scalp, including how hair grows, common conditions that affect the hair and scalp, and how to care for them. This field specifically studies hair structure, the hair growth cycle, and disorders like alopecia, dandruff, and scalp dermatitis, along with practical care and treatment approaches. Dermatology covers skin, nails, and hair at a broader medical level, but when the emphasis is on hair health and its diseases and care, trichology is the most fitting focus. Anatomy is about body structure, and physiology is about how body systems function, neither of which targets hair diseases and care specifically.