Study: Kidney Transplant Recipients Tend to Urinate More Frequently

Dr. Marian J. A. van der Weide from the University Medical Centre St. Radboud in Nijmegen, the Netherlands, and compared the urinary habits of 63 patients who had kidney transplants with those of 74 patients who visited an outpatient clinic with nonurologic complaints.

"The most important finding was that patients who underwent renal transplantation needed to void more often than controls, both during the day and at night," van der Weide reported in the Journal of Urology.

"After renal transplantation, almost 50 percent of the patients complained of frequency and 62 percent of nocturia," the awakening and need to urinate at night.

The researchers reported that 30 transplant recipients -- almost half of the study group -- urinated seven or more times during the day and 39 urinated two or more times at night.

They said, however, that the transplant patients did not tend to perceive the frequency of urination as a problem.