Tears drop from Yao Yanzhi's eyes as she gradually loses consciousness on the operating table on Dec. 8, 2016.
Chen Tan is a college student who suffers from uremia. To save his life, his mother, Yao Yanzhi, decided to donate her own kidney to him. They stayed in a hotel nearby Anhui Provincial Hospital waiting for the transplant surgery on Dec. 8. After the surgery, which lasted over 10 hours, Yao's kidney was successfully transplanted into Chen's body.
Yao Yanzhi chats with her son in the corridor to relax before surgery on Dec. 8, 2016.
Chen Tan waits outside the operating room while his mother is undergoing surgery.
Yao's mother comes to see her in the ward after surgery.