“This young woman arrived at the hospital with a green pallor to her face,” recalls Masahiro Matsushima, a urologist at Tobo University Hospital. “I could tell from her face right away what her problem was. It was late at night and I suspected she had inserted something.

I took a look and there, protruding from her urethra, was a rounded glass rod that turned out to be a mercury thermometer. She had been playing with herself and it had become lodged in her urethra and she couldn’t remove it. She was weeping with shame and fear when she came to the hospital.