Zhao Liang, 27, is 2.46 m tall - 10 cm taller than Bao Xishun, now recognized by the Guinness World Records as the world's tallest man, and 17 cm taller than China's NBA basketball star Yao Ming.
But Zhao has not been independently verified by the Guinness judges, so he is not officially considered to be the world's tallest man, Xinhua reports.
Zhao entered a hospital in Tianjin city for an operation to relieve pain from an old muscle tendon injury on his left foot.
He instantly caused a stir because of his unbelievable height and hospital staff rushed to get him properly measured.
Zhao, who lives in Henan province, had been training as a basketball player when he sustained the debilitating foot injury over a decade ago.
Zhao’s parents are of average height, with his father measuring 1.8m and his mum 1.68m.
Wang Keyun, Zhao’s mother, said her son has a big appetite — polishing off eight hamburger-sized steamed buns and three dishes for dinner.
Other interesting stuff to read: