What is normal urination in one day?

Answer 1

Fitzgerald MP, Stablein U, Brubaker L.(2002) in "Urinary habits among asymptomatic women." reported that ordinary women voided a median of 8 times in one day(95% of subjects voided fewer than 13 times) although it varied widely with the differences on race, age, and fluid intake. Concerning volume, the study showed a median of 5 voids per 1 liter urine output, and a median of 4 voids per 1 liter fluid intake (300 subjects). Latini JM, Mueller E, Lux MM, Fitzgerald MP, Kreder KJ. (2004) in "Voiding frequency in a sample of asymptomatic American men." reported that ordinary men voided a median of 7 times in one day (95% of subjects voided fewer than 12 times) although it varied widely (range 2 to 21 times a day). Subjects voided a median of 1.65 liter in 24 hours (range 0.29 to 6.840). They intaked a median of 2.747 liter per day(284 subjects). These studies illustrate that the normal urination of asymptomatic people varies widely with fluid intake, age, gender, and race. Nevertheless, the fact that 95% of femal and male subjects respectively voided fewer than 13 times and 12 times is applicable to this answering. The answer is, Majority of men urinate less than 12 times a day, averaging 7 times daily. And, majority of women urinate less than 13 times a day, averaging 8 times daily. Latini JM, Mueller E, Lux MM, Fitzgerald MP, Kreder KJ. "Voiding frequency in a sample of asymptomatic American men." J Urol. 2004 Sep;172(3):980-4. Fitzgerald MP, Stablein U, Brubaker L. "Urinary habits among asymptomatic women." Am J Obstet Gynecol. 2002 Nov;187(5):1384-8.