Medical specialty dealing with the urinary system and male reproductive organs. It traces its origin to medieval lithologists, itinerant healers who specialized in surgical removal of bladder stones. The Spanish surgeon Francisco Díaz wrote the first treatises on urinary-tract disease (1588) and is regarded as the founder of modern urology. Most modern urological procedures originated in the 19th century. Today, urologists use bladder catheters (see catheterization), the cystoscope (to view the inside of the bladder), and various diagnostic imaging techniques; treat prostatic disorders; perform vasectomies; and may surgically remove stones in the urinary tract and cancers of the kidneys, bladder, and testicles. Urology deals mostly with male patients; the urinary tract in females may be treated by gynecologists (see obstetrics and gynecology).
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In men, the urinary system overlaps with the reproductive system, and in women the urinary tract opens into the vulva. In both sexes, the urinary and reproductive tracts are close together, and disorders of one often affect the other. Urology combines management of medical (i.e., non-surgical) problems such as urinary infections, and surgical problems such as the correction of congenital abnormalities and the surgical management of cancers. Such abnormalities within the genital region are called genitourinary disorders.
Urology is closely related to, and in some cases overlaps with, the medical fields of nephrology, andrology, gynecology, proctology and oncology.
Other subfields of urology include stone disease, sexual dysfunction, trauma and reconstruction, and male infertility.