Whether Yu Zhengrong and others are "illegal medical practitioners" has become a focus of debate.

Wang Jianguo’s side believes that although Yu Zhengrong had obtained a medical qualification certificate at that time, he did not obtain a medical practice certificate. The date of issuance marked on Yu Zhengrong’s medical practice certificate was May 25, 2006. .

In this regard, Peking University First Hospital believes that Li Chunde, the attending doctor who performed the surgery on Xiong Zhuowei, is the director of the orthopedics department of the hospital and a registered physician of the hospital, and that other relevant doctors do not engage in "illegal practice of medicine" According to the situation, the resident doctor involved in this case, Yu Zhengrong, has also obtained medical qualifications. According to the relevant documents of the Ministry of Health, "physicians who have obtained the "Physician Qualification Certificate" and are qualified to apply for registration as a practicing physician shall not obtain the physician's practicing certificate due to reasons not caused by themselves, within the medical preventive health care institution where they are employed and during working hours. The practice activities do not constitute illegal medical practice."