Dark Urine and Abdominal Pain: Causes and Solutions - Urology

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Dark urine and abdominal pain?


Hello, doctor.
I apologize for bothering you with a urological issue.
My company is conducting health checks that require blood and urine tests, so I was instructed to fast for 10 hours without food or water.
I stopped drinking water at 10 PM the night before the check-up, which started at 9 AM the next day.
However, when I woke up around 6 AM, I had a normal bowel movement but then felt discomfort in my abdomen and a strong urge to urinate, yet I couldn't.
My urine was dark, and after the initial urination, subsequent attempts resulted in only a few drops of the same dark color.
During the urine test, the sample collected was also dark and seemed to have some sediment, with a low volume.
Throughout this time, I continued to feel abdominal discomfort and had the urge to defecate but couldn't.
After the examination, around 10 AM, I started drinking a lot of water, and about an hour later (around 11 AM), the abdominal pain began to subside, and I was able to urinate normally (not just drops).
The color of my urine also lightened.
Once I had a second normal urination with clear, non-yellow urine, the abdominal pain completely disappeared.
This situation occurred this morning, so I would like to ask if this is normal, and whether dehydration could affect my abdominal discomfort.
Thank you, doctor.
P.S.
The abdominal pain felt somewhat similar to the discomfort I experienced when I had kidney stones in the past, but I had a follow-up appointment in May, and both the X-ray and ultrasound showed no abnormalities.

Xiao Yang, 30~39 year old female. Ask Date: 2019/06/14

Dr. Du Shixi reply Urology


Hello: It is possible that there was already dehydration before fasting, which could explain the issue of low urine output in the morning.
You can check the report; if there is hematuria, it is very likely a symptom of kidney stones.
However, if there is no hematuria at all, the chances of having stones are low.
Wishing you good health.

Reply Date: 2019/06/14

More Info


The symptoms you've described, including dark urine, abdominal discomfort, and the urge to urinate without being able to do so, can be concerning and may indicate several underlying issues. Let's break down the potential causes and solutions based on your situation.


Possible Causes
1. Dehydration: Given that you had to fast for 10 hours prior to your health check, it's likely that you were dehydrated. Dehydration can lead to concentrated urine, which often appears darker in color. It can also cause abdominal discomfort, as the body may struggle to maintain normal function without adequate fluid intake.

2. Urinary Tract Infection (UTI): Dark urine accompanied by discomfort and a frequent urge to urinate can also suggest a urinary tract infection. UTIs can cause irritation in the bladder and urethra, leading to pain and changes in urination patterns.

3. Kidney Stones: You mentioned a history of kidney stones, and the pain you described resembles the discomfort associated with passing stones. Even if recent imaging showed no abnormalities, stones can sometimes be small enough to pass without detection but still cause significant discomfort.

4. Gastrointestinal Issues: The abdominal pain and the sensation of needing to defecate could also be related to gastrointestinal issues, such as constipation or bowel obstruction. Dehydration can lead to harder stools, making bowel movements more difficult.

5. Concentration of Urine: When dehydrated, the kidneys concentrate urine, which can lead to sedimentation and a darker appearance. This is a normal physiological response to conserve water.


Solutions and Recommendations
1. Hydration: The most immediate solution is to ensure adequate hydration. Drinking plenty of water can help dilute the urine, alleviate abdominal discomfort, and promote normal bowel and urinary function. Aim to drink water consistently throughout the day, especially after periods of fasting or dehydration.

2. Monitor Symptoms: Keep an eye on your symptoms. If the abdominal pain persists, or if you experience additional symptoms such as fever, chills, or changes in urinary patterns (e.g., increased frequency, burning sensation), it would be prudent to consult a healthcare provider.

3. Urinalysis: Since you experienced dark urine and sediment, it may be beneficial to have a urinalysis performed. This test can help identify any signs of infection, blood, or other abnormalities in the urine.

4. Follow-Up on Kidney Health: Given your history of kidney stones, it would be wise to maintain regular follow-ups with your healthcare provider. They may recommend imaging studies or urine tests to monitor for any recurrence of stones or other kidney issues.

5. Dietary Considerations: Ensure that your diet is rich in fiber to promote healthy bowel movements. Foods high in water content, such as fruits and vegetables, can also aid in hydration.

6. Avoiding Triggers: If you have identified any specific foods or activities that trigger your abdominal discomfort, it may be helpful to avoid them.

In summary, your symptoms appear to be related to dehydration, possibly compounded by your history of kidney stones. Ensuring proper hydration and monitoring your symptoms closely will be key in managing your condition. If symptoms persist or worsen, seeking medical attention is essential to rule out any serious underlying issues.

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