Which term refers to hair loss?

• A. Dermatitis
• B. Alopecia
• C. Eczema
• D. Folliculitis

Answer: (B)

Hair loss is described by the term alopecia. This term specifically refers to thinning or complete loss of hair on the scalp or other parts of the body. Other options describe skin inflammation or infection rather than the hair loss itself: dermatitis and eczema are inflammatory skin conditions, and folliculitis is inflammation of the hair follicles, which can sometimes coincide with hair shedding but does not name the condition of losing hair. Knowing alopecia helps you identify the correct term when the question centers on loss of hair.