The authors present four cases of diverticuli of the female urethra, and make a review of the subject, basically from the diagnostic and therapeutic points of view. Even though they acknowledge the great usefulness of a clinical exploration which may sometimes provide palpatory pathognomonic signs, they consider essential to perform a urethrography, without overlooking the i.v. urography, due to the image of compression sometimes produced by a subcervical diverticulum on the bladder, which can sometimes be recognized in the cystogram. They also advise a urethroscopy which provides highly valuable additional data. They make a review of recent papers dealing with echographic diagnosis and consider it to be a highly useful method with great prospects. After a short historical examination, they comment the current treatment techniques and indicate the most suitable one in each case. After reviewing the Spanish statistics, they include a total of 26 cases in the present paper.