Marcus Genzlinger had no idea how bad it was until his girlfriend forced him to face the truth.
"She showed me a picture from a wedding where I had see-through hair," he said.
The marketing consultant had been obsessed with his thinning hair for years. "I always worked too hard to style it right and tried to hide it," he said.
After his girlfriend's "intervention," Genzlinger, now 39, shaved his head. He's been a chrome dome ever since, something that "makes me feel more confident and comfortable," he said. "And I think it makes me look younger."
Gerzlinger is part of a cutting-edge trend that started about a half-dozen years ago and shows no signs of receding.
A recent study at the University of Pennsylvania's Wharton School showed that men with very closely cropped hair and shorn heads are regarded as more virile and commanding than their more hirsute peers. It also found that men with thinning hair were viewed as weaker and less attractive.
Not good news for the 35 million American men with male-pattern baldness. But as more men have forgone a cranial coverup, the look has become more socially acceptable, especially among younger men and the women who like them.
"You're seeing the next generations below boomers joining the ranks. It makes a statement," said Teresa Daly, co-founder of the Minneapolis executive-placement company Navigate Forward.