Urinary retention and the lunisolar cycle: is it a lunatic phenomenon?BMJ 1989; 299 doi: https://doi.org/10.1136/bmj.299.6715.1560 (Published 23 December 1989) Cite this as: BMJ 1989;299:1560
- S. R. Payne,
- D. J. Deardon,
- G. F. Abercrombie,
- G. L. Carlson
OBJECTIVE--To determine whether a relation between urinary retention and temporal rhythms exists. DESIGN--Retrospective analysis of patients presenting over three years. SETTING--Urology departments in two hospitals. PATIENTS--815 Patients presenting as emergency admissions with urinary retention and requiring immediate decompression of the bladder. MAIN OUTCOME MEASURES--Calendar date of each admission to determine circadian, monthly, and seasonal periodicity. RESULTS--No association was found between urinary retention and circadian, monthly, or seasonal rhythms. A significantly higher (p less than 0.001) incidence of urinary retention was observed during the new moon in comparison with other phases of the lunar cycle. CONCLUSIONS--Urinary retention is periodic in nature. This should be considered when the workload of a specialist urological department is organised.