Both of them suffered serious injuries to their penises Thien lost most of his while Hao lost half of it, Hoang said, adding that doctors have conducted surgeries to re-join the boys with their severed members. It was "good" that the injuries did not have any sign of venom, the doctor noted. According to Nguyen Huu Tinh, Thien's father, his son was attacked when he was swimming in the Kenh Giua River, which is between four and five meters wide, with six other children.