每日一词学英语(75): alopecia

Lulu O’hagan曾经一头金发，后来不知什么原因开始脱发，她把脱发及治疗过程如实记录了下来（From The Times, July 6, 2009: Alopecia: I wish I could be bald and proud）。

My long blonde hair has started dropping out in two patches over each ear. My hairdresser notices it first and immediately says that she thinks it’s alopecia. I make an appointment to see a dermatologist about my eczema and he diagnoses alopecia aereata.

Alopecia or hair loss is the medical description of the loss of hair from the head or body, sometimes to the extent of baldness. When hair loss occurs in only one section, it is known as alopecia areata (AA).

Alopecia是“脱发”，AA是“鬼剃头”。英国每60人中会有1人得AA，致病机理尚不清楚。