A.0% B.10%~30% C.30%~50% D.50%~70%
A.50%~60% B.60%~70% C.70%~80% D.80%~90%
A.發(fā)生于病情活動期 B.呈彌漫性休止期禿發(fā) C.前額頭發(fā)變細,無光澤,具毛刷樣外觀 D.可形成瘢痕導(dǎo)致永久性禿發(fā)