The emergency surgery that lasted nearly two hours was performed on the left kidney of He Dong at Dongyang People's Hospital in Jinhua city of East China's Zhejiang province after a CT scan for abdominal pain showed his kidney filled with stones.
Dong told doctors that he ate a large daily diet of gypsum tofu, a local food with a high concentration of calcium sulfate.
"Soy products, especially gypsum tofu, are very high in calcium, the excess of which cannot be excreted from body without a sufficient intake of water," said the doctor Wei Yubin.
"The operation almost took two hours. We spent 45 minutes just taking out the tiny stones. After the operation, my hands and legs were both numb," Yubin said.
The doctors removed the 420 stones one at a time with forceps, the Mirror reported.
Dang said he didn't like drinking water but has been ordered to change his eating habits.
The doctors have advised Dang to cut down on the daily consumption of tofu. He has kept the stones as a souvenir.
外文标题：Doctors remove 420 stones from man's kidney
Vijay Bali (India)
good job done by the Doctors
great work. Doctor need special appreciation
Evans Christopher Sumitra (Unknown)
Hats off to all the doctors who removed 420 stones from the man's kidney. I do not know how he managed to bare the pain all these years.
He is lucky that he is survived.
shubhankar jape ()
Everything is okay Who counted the calculi later?? Must be a patient man
The stones should be kept in museum.
If gypsum tofu is a favorite in China many people may be with few kidney stones without knowing so President should advise the people to drink water/Coca cola/beer to dissolve them
Vasudhaiv (Delhi) 6 hrs ago
is this gunese record? thhis man does not like to drink water..
lakshmi () 6 hrs ago
Prasad Kanuri (Unknown)
Hats of to the Doctors patience. Really a great surgery.
Imraz () 7 hrs ago
Naveen () 7 hrs ago
its amazing, great job done by doctors
Is it kidney or a stone quarry?
Sadhana () 7 hrs ago
kidney is so small how can it accomodate so many stones even though they are small.. false article
Subjit Dash (Unknown)
Srihari () 7 hrs ago
Good lord! this guy survived with do much stones inside him!
Rakesh () 7 hrs ago
excess of every thing is bad