Kidney Issues: Symptoms and Concerns for Students - Urology

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Kidney problems


Hello, I am a bit concerned about my kidney health.
A few days ago, I experienced symptoms of a urethral infection (itching 1-2 times a day for 2 days).
I sometimes have intermittent pain in my lower back, lasting 5 to 10 seconds each time, with the location varying.
When I tap on both sides of my lower back, I can feel a sensation from the inside out, which I believe is pain, but it is very mild (I am a bit underweight).
I only experience frequent urination when I drink a lot of water (previously, I would drink half a bottle of water after each class, which made me feel a strong urge to urinate during some classes, but I stopped because of upcoming exams).
In the morning, I do not have any swelling, and my urine is light yellow.
The first urine of the morning has bubbles, and I do not feel feverish or chilled.
However, after masturbation, my urination feels strange, and I have a sensation of residual urine.
I have experienced a couple of instances of residual urine sensation (in the penile urethra) at other times.
I had a urine test done a year ago, which was normal.
I am feeling anxious about the upcoming exams, and this has occupied a lot of my thoughts, which is why I am asking.

Niming, 10~19 year old female. Ask Date: 2017/01/11

Dr. Du Shixi reply Urology


Hello: If the urine test for the kidneys is normal, a blood test may still be necessary.
Additionally, drinking 2500-3500 ml of water a day is recommended (based on your age).
If you sit for a long time, make sure to get up and move around.
Many people experience urinary symptoms; if there is a real issue, you should seek medical attention.
Thank you for your inquiry.

Reply Date: 2017/01/11

More Info


It sounds like you are experiencing a range of symptoms that are causing you concern, particularly regarding your kidney health and urinary function. Let's break down your symptoms and the potential implications for your kidney health.

Firstly, you mentioned experiencing itching at the urethral opening and intermittent pain in your lower back and sides. These symptoms could suggest a urinary tract infection (UTI), especially given the itchiness and the urgency you feel to urinate. UTIs can cause discomfort and may lead to more severe complications if not treated promptly. The fact that you have experienced these symptoms for a couple of days indicates that it would be wise to consult a healthcare professional for a proper diagnosis and treatment.

Your description of the pain in your back being intermittent and mild is also noteworthy. While kidney pain is often described as a deep, dull ache that can be felt in the lower back, it can sometimes be mistaken for muscular pain. The location of the pain, its intensity, and whether it radiates to other areas can help differentiate between kidney-related issues and musculoskeletal problems. Given that you have a history of being slightly underweight, it is essential to ensure that your body is receiving adequate nutrition to support overall health, including kidney function.

You also mentioned that you experience frequent urination, particularly after increasing your water intake. This is a normal response of the kidneys to filter excess fluid from the body. However, if you are experiencing urgency or a feeling of incomplete bladder emptying (the sensation of "residual urine"), it could indicate a potential issue with your urinary tract or bladder function. This sensation can sometimes be associated with infections or inflammation in the urinary system.

The presence of bubbles in your urine, especially in the morning, can be indicative of proteinuria (the presence of excess protein in urine), which may suggest kidney dysfunction. However, you noted that your urine was normal during a previous test, so it may be worth monitoring this symptom closely. If you continue to notice bubbles in your urine, it would be prudent to have further testing done to assess your kidney function and rule out any underlying conditions.

Regarding your anxiety about upcoming exams, it is important to recognize that stress can exacerbate physical symptoms. Anxiety can lead to increased muscle tension, which may contribute to the discomfort you feel in your back. Additionally, stress can affect your urinary habits, leading to increased urgency or frequency. It is crucial to find healthy coping mechanisms for managing stress, such as relaxation techniques, exercise, or speaking with a counselor.

In summary, your symptoms warrant further evaluation by a healthcare professional. A urinalysis and possibly imaging studies may be necessary to assess your kidney function and rule out any infections or other issues. It is also essential to maintain good hydration, avoid holding in urine for extended periods, and manage stress effectively. If you experience any worsening symptoms, such as fever, chills, or severe pain, seek medical attention promptly. Your health is paramount, and addressing these concerns early can help prevent more significant issues down the line.

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