A 24-year-old bartender has admitted to never cleaning his penis.
The man - known only as Zach - claims to have girls 'throwing themselves at him' and has bedded '40 lasses'.
Despite having sex for years, Zach visited Dr Naomi Sutton - of E4's hit show The Sex Clinic - after feeling his penis had 'failed him' when he became unable to 'finish' due to his foreskin being too tight.
He even thought his penis may still be growing - with his foreskin being unable to keep up.
But an examination by Dr Naomi revealed Zach had a serious case of smegma - build up of dead skin, oil and moisture - which was making his foreskin too sensitive to pull back.
Zach - who also admitted to having a host of STIs - told the medic he was unaware he was meant to clean down below.
Zach visited the clinic complaining of having a 'nasty smell', as well as pain and irritation at the tip of his penis, for the past six-to-nine months.
He first met with nurse Sarah, who he told that after intercourse, he has to 'untuck' his foreskin from behind his shaft.
Although sometimes easy, Zach added he would spend days trying to position his foreskin back into place.
When he questioned whether his penis was enlarging, Sarah said: 'I think you've stopped growing now babe'.
The man who has NEVER cleaned his penis
The man - known only as Zach - was examined by Dr Naomi Sutton of E4's The Sex Clinic. The Sheffield-based consultant diagnosed the 24-year-old with a serious case of smega build-up.
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