In March 2005, Gengzi underwent the first operation of "changing from a woman to a man" at Zhongshan Hospital in Xiamen. In the past six months, after four stages of transsexual surgery in Xiamen and Guangzhou, the uterus, ovary, vagina and breast were removed.

The last operation was performed in the Plastic Surgery Center of Guangdong Armed Police General Hospital. The operation includes removing cartilage from chest and implanting it into penis, removing labia, installing urethra and entering urethral orifice. Gengzi finally realized her dream of having a man's body.

Xiu Zhifu, director of the plastic surgery department of Xiamen Zhongshan Hospital, said that the success of Geng Lanjun's transformation into a scorpion not only refers to the success of the operation itself, but also the success of Gengzi's own mentality of changing from a woman to a man. However, compared with natural persons, Gengzi still has some defects, such as not having children of his own.