The further progress of focus of a disease can appear certain the sign that has diagnostic sex, shine like, translucent papule appearance is nodular, the surface has ooze blood and companion has blood capillary dilate.

• 病灶的进一步发展就会出现某些具有特征性的征象，如一个发亮的、半透明的丘疹样小结节，表面有渗血并伴有毛细血管扩张。