Dr Zhang Weigang is the chief physician of Baishi Anorectal Hospital in Haikou. He has been engaged in the treatment of anorectal diseases for a long time and is good at the surgical treatment of various hemorrhoids and complex anal fistula. He is also the heir of Bai, a famous Chinese medicine studio, and obtained the biography of Professor Bai, a descendant of Xia's surgery. In Tik Tok, Dr. Zhang Weigang also shared some knowledge and experience about the treatment of anorectal diseases, which attracted some attention. Therefore, it can be considered that Dr. Zhang Weigang on Tik Tok is real.