Beijing. A stone weighing 3 pounds has been removed from the bladder of a farmer in China. Reaching, 56-year-old farmer Chen (pseudonym) of Longtang city in western Guangdong, China, had been suffering from unbearable pain and serious urinary problems for years. During a hospital check-up, an unusually large stone was found in his bladder. For the past three years, Chen had been experiencing frequent difficulty urinating, sudden retention of urine, and sometimes had to change his posture. Sometimes it was unbearable pain and discomfort. Initially, he considered these symptoms as common problems caused by the prostate and did not go...