A passenger on a China Southern Airlines flight to New York suffered a bladder problem that prevented him from urinating completely for an emergency blockage, leaving him with severe pain during which he felt his bladder approached the explosion at an altitude of 33,000 feet.

The pilot immediately made a distress call through the microphone to the passengers, in search of a doctor. The flight attendants rushed to find who could do something. Pass a soft plastic tube to the 70-year-old passenger's bladder, absorbing his urine point by point for 37 minutes, in which he managed to get a liter of trapped urine, a process that international media have described as the most unusual and humane of air rescue operations.

Dr. Hong later said the man was sweating from the pain caused by his urinary bladder trapped in the bladder. "He was shocked and could not stand, and his family reported that he had a history of prostate hyperplasia, so his urine was confined."

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