Lower Abdominal Pain: Can Increased Hydration Help Kidney Stones? - Urology

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Lower abdominal pain due to kidney stones?


Hello doctor, a few days ago I noticed blood in my urine.
Although it improved after drinking a lot of water (about 3000cc), I suddenly felt pain in my lower abdomen at night (without any back pain), which lasted for a while.
I was diagnosed with kidney stones about six months ago, but the pain started today.
I would like to ask the doctor if, based on these symptoms, I can still rely on drinking water to pass the stones naturally, or if I can only rely on extracorporeal shock wave lithotripsy.
Thank you.
P.S.: The urine can pass naturally without pain, and the lower abdominal pain has decreased, allowing me to move normally.

zero zero, 10~19 year old female. Ask Date: 2024/05/13

Dr. Du Shixi reply Urology


Hello: If you can tolerate it, most people would suggest monitoring the stone for a week to see if it passes or decreases in size.
Wishing you good health.

Reply Date: 2024/05/13

More Info


When dealing with kidney stones, understanding the symptoms and the role of hydration is crucial. Your recent experience of lower abdominal pain, coupled with blood in your urine, indicates that your kidney stones may be causing some irritation or blockage in your urinary tract. While you have been drinking a significant amount of water (around 3000cc), which is generally beneficial for flushing out stones, the presence of pain suggests that the stones may still be causing some issues.

Hydration plays a vital role in managing kidney stones. Increased fluid intake helps dilute the substances in urine that lead to stone formation and can assist in flushing out smaller stones. In your case, since you have been experiencing blood in your urine and abdominal pain, it is essential to monitor these symptoms closely. If the pain persists or worsens, or if you experience additional symptoms such as fever, chills, or severe discomfort, you should seek medical attention promptly.

Regarding your question about whether you can rely solely on hydration to pass the stones, it depends on several factors, including the size and location of the stones. Generally, stones smaller than 5mm have a good chance of passing naturally with increased hydration. However, larger stones, particularly those around 2cm, may require medical intervention, such as extracorporeal shock wave lithotripsy (ESWL), which uses sound waves to break up stones into smaller pieces that can be passed more easily.

In your situation, since you mentioned that the pain has subsided and you can move normally, it may indicate that the stone is either moving or has passed into the bladder. However, the presence of blood in your urine is a sign that there may still be some irritation or damage to the urinary tract, which should not be overlooked.

In addition to hydration, there are other methods to potentially increase the chances of passing kidney stones. These include:
1. Pain Management: Over-the-counter pain relievers can help manage discomfort as the stones pass.

2. Dietary Adjustments: Depending on the type of stones you have, certain dietary changes may be beneficial. For example, reducing sodium intake and avoiding foods high in oxalates (like spinach and nuts) can help prevent the formation of calcium oxalate stones.

3. Medications: In some cases, medications may be prescribed to help facilitate the passage of stones or to manage pain.

To prevent future occurrences of kidney stones, maintaining adequate hydration is key, along with regular check-ups with your healthcare provider. If you have a history of kidney stones, it may also be beneficial to undergo metabolic testing to identify any underlying issues that could be contributing to stone formation.

In summary, while increased hydration is essential and can help with passing smaller stones, it is important to remain vigilant about your symptoms. If the pain returns or if you have any concerns about your condition, do not hesitate to consult your healthcare provider for further evaluation and management.

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