One in three men are too fat to see their own penis beneath their bulbous bellies, reveals study.
A shocking 33 percent of 35 to 60-year-olds are so overweight that their manhood is hidden from sight when they stand upright and look downwards.
According to the survey of 1,000 men commissioned by WeLoveOurHealth.co.uk, a staggering 44 percent of those aged between 51 and 60 fail the "spot the penis" test.
Obese men who are unable to see their penises are said to be five times more likely to develop type 2 diabetes and three times more likely to develop colon cancer.
"This new research is really worrying and men must be encouraged to wake up to the potential life-threatening risks of being overweight and to make this vital check," the Sun quoted A and E specialist Dr Johan du Plessis, who also works as WeLoveOurHealth.co.uk's online doctor, as saying.
"An obese man who cannot see his penis is five times more likely to develop type 2 diabetes, three times more likely to develop cancer of the colon and more than two and a half times more likely to develop high blood pressure - a major risk factor for stroke and heart disease," Dr du Plessis added.