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Monosymptomatic nocturnal enuresis caused by seasonal temperature changes

By T. Tas, B. Cakiroglu, A.I. Hazar, M.B.C. Balci, O. Sinanoglu, Y. Nas, and F. Yilmazer.

International Journal of Clinical and Experimental Medicine, Volume 7, Issue 4, 30 April 2014, Pages 1035-1039

Editor’s comments:

Parallel to the study (view study) that the effect of the alarm treatment has seasonal success rates, this study shows a seasonal difference in incidence and severity of nocturnal enuresis.  The results of this study have shown an increased incidence and an increase in frequency of enuresis episode during the winter time however without any evidence or hypothesis why this would occur.


Primary nocturnal enuresis is the most frequent urologic complaint among pediatric patients. Enuresis is believed to have a complex etiology involving genetic, somatic, and behavioral factors. We study the relationship between seasonal temperature changes effect and monosymptomatic nocturnal enuresis (MNE).

Between 2011 and 2012, a total of 75 children with primary MNE selected from urology and pediatry clinics were included in this study. All of the children underwent physical examinations, urine analyses, urinary ultrasounds, and direct urinary graphs. We evaluated the enuresis ratio for the summer (the hot season from June to September) and winter (the cold season from December to March) months in nightly, weekly, and monthly intervals via prepared questionnaires.

Of the 75 study participants, 45 were boys (60%) and 30 were girls (40%). The age range was 6-16 years (mean 10.3±2.0 years). We observed a difference in the ratio of enuresis data between the summer and winter months in 29 males and 19 females, which totals 48 of the 75 MNE patients evaluated in this study. There was a statistically significant difference noted in monthly enuresis ratio in the summer and winter (p<0.0001). We observed a significant difference in quality of life, and this difference caused considerable emotional discomfort for the patients.

In the winter months, the nightly, weekly, and monthly ratios are higher in children with MNE. This increase causes a decrease in the quality of life of these children.


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