Three cases of ectopic ureter were observed among a total of 11, 352 new out-patients to the Department of Urology, Chonnam University Hospital, Kwangju, Korea from April, 1962 to September, 1971. Case I, a 29 year old house-wife was admitted to our hospital on October 2, 1968 under a diagnosis of hypertensive heart disease with pasive pulmonary congestion after a smooth normal delivery 20 days ago. Case II, a 12 year old girl came to our hospital with a chief complaint of urinary incontience from her childhood. Case III, a 16 year old girl visited our hospital with a chief complaint of urinary incontinence from her childhood. Embryological etiology, incidence, age and sex distribution, locations of ectopic opening, symptoms, diagnosis andtreatment of ectopic ureter are discussed with a review of literature.