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(NEWSER) – If you think a bio-penis is only for guys who've run into angry, knife-wielding partners, think again. Genetic defects, penile cancer surgery, trauma, and even erectile dysfunction are all reasons a sizable number of men might opt for a bioengineered penis.

A team of researchers has done it successfully with lab rabbits, reports Wake Forest School of Medicine, and they've spent the past six years scaling up so that a human patient might soon have a penis made from his own cells biopsied from salvageable tissue and then grown in culture and ultimately transplanted, reports the Guardian. If it sounds easy, well, it's not: The penis is a pretty intricate organ.

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