Successful treatment of infertility due to retrograde ejaculation by instillation of serum-containing medium into the bladder. A case report.

The treatment of infertility caused by retrograde ejaculation has often been ineffective. The unphysiological composition of the urine is the main reason complicating the recovery of motile sperm. We describe a case of retrograde ejaculation caused by a congenital defect of the internal sphinchter muscle of the urinary bladder. In this case, motile sperm were only recovered if the bladder had been filled previously with artificial culture medium (Ham's F-10) supplemented with the patient's own serum. Two pregnancies followed intrauterine insemination with sperm recovered in this way.