Daytime Urination

What Causes Frequent Urination During The Day?

Frequent urination during the day can have various causes, ranging in severity from 'minor' to 'life-threatening'.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose frequent urination during the day, we could:
  • Research the topic
  • Find a doctor with the time
  • Use a diagnostic computer system.
The process is the same, whichever method is used.

Step 1: List all Possible Causes

We begin by identifying the disease conditions which have "frequent urination during the day" as a symptom.  Here are eight of many possibilities (more below):
  • Sarcoidosis
  • Diabetes Insipidus
  • Prostate Enlargement
  • Diabetes I
  • Milk Allergy
  • Kidney Disease
  • Diabetes II
  • Caffeine Intoxication

Step 2: Build a Symptom Checklist

We then identify all possible symptoms and risk factors of each possible cause, and check the ones that apply:
being easily excitable
eyelid twitch
frequent painful inguinal nodes
arrhythmia
shortness of breath when at rest
serious mid-right abdominal pain
much reduced sense of smell
having a mildly enlarged prostate
swollen axillary nodes
occasional racing thoughts
very strong appetite
severe mid-left abdominal pain
... and more than 80 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of frequent urination during the day:
Cause Probability Status
Sarcoidosis 98% Confirm
Caffeine Intoxication 18% Unlikely
Diabetes I 26% Unlikely
Diabetes II 1% Ruled out
Diabetes Insipidus 1% Ruled out
Prostate Enlargement 0% Ruled out
Milk Allergy 0% Ruled out
Kidney Disease 0% Ruled out
* This is a simple example to illustrate the process

Arriving at a Correct Diagnosis

The Analyst™ is our online diagnosis tool that learns all about you through a straightforward process of multi-level questioning, providing diagnosis at the end.

In the Urinary Symptoms section of the questionnaire, The Analyst™ will ask the following question about daytime urination:
Daytime urination. On average, how many times do you urinate during your waking hours?
Possible responses:
→ Under 2 times
→ 2 or 3 times
→ About 4 to 5 times / don't know
→ 6 to 9 times
→ 10 or more times
Based on your response to this question, which may indicate infrequent daytime urination, normal daytime urination frequency or frequent daytime urination, The Analyst™ will consider possibilities such as:
Diabetes Insipidus

Average urine volume for a normal adult is 1.5 liters daily.  In advanced cases of diabetes insipidus, urine volume can approach 18 liters daily.

Enlarged Prostate

Increases in the number of times a man has to visit the bathroom along with a frequent sensation of having to urinate – especially at night – are among some of the early signs.  In addition, a reduction in the force and caliber of urination is also characteristic of prostatic enlargement.

Fibroids

Mural fibroids (located in the uterine wall) and subserous fibroids (protruding outside the uterine wall) may reach a large size before causing symptoms.  These symptoms may include pressure on the bladder with difficulty voiding or urinary frequency and urgency, pressure on the rectum with constipation, lower back and abdominal pain, as well as heavy bleeding.

Caffeine Intoxication

Caffeine is a diuretic, causing increased urination.