A birth condition where the urinary opening (urethra) is on the wrong side (top or dorsal side) of the penis instead of the normal location.
From Greek epi- 'upon' + spadon (past participle of span 'to draw') referring to 'on the split side.' Medical terminology from 19th-century anatomical studies.
Epispadia is the opposite of hypospadias (under)—both are rare, and doctors can fix them with surgery, but the fact that they exist shows how precisely the human fetus has to develop during weeks 8-14!
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