Understanding the Natural Passage of a 7 mm Left Lower Ureteric Stone

When dealing with a ureteric stone, especially one as large as 7 mm, you may wonder about the chances of it passing naturally. While typically only stones smaller than 6 mm are likely to pass on their own, a 7 mm stone isn't entirely out of the question. However, the likelihood of spontaneous passage decreases as the size of the stone increases. Let’s dive into the details.

What are the Chances of Spontaneous Passage?

The chances of a 7 mm stone passing naturally are around 20%, which may seem low initially. However, it’s crucial to understand that this figure can vary based on various factors. Some patients with a history of stone formation have been known to pass stones of this size without intervention. If you are facing such a situation, consulting your local urologist is always a wise choice.

Factors Influencing Spontaneous Passage

Whether the stone is stuck or obstructive (blocking the ureter) plays a significant role in determining the chances of natural passage. An obstructive stone can quickly turn into an urgent medical issue, often requiring immediate attention. Personal experience has shown that having two obstructive stones myself has reinforced the importance of monitoring the stone's progress and seeking prompt medical advice if symptoms worsen.

Pain Relief and Medications

Medications like Flomax (tamsulosin) can help in relaxing the ureters and the neck of the bladder. While some might find relief from these drugs, they do not guarantee the stone's passage. Using Flomax might be the push your stone needs to pass, but individual responses can vary. It is essential to discuss the potential benefits and side effects with your healthcare provider before starting any medication.

Real-World Experiences

My own experience with a 7.3 mm kidney stone provides an interesting case study. I was initially advised to undergo laser surgery due to the stone's size. However, within 15 days, the stone passed naturally without intervention. The pain was manageable, and the process could be divided into three distinct stages:

Stage 1: The stone's movement from the kidney to the ureter. This phase lasted about 7-9 hours with frequent but not intense pain. Stage 2: The period of movement from the ureter to the bladder. The pain was irregular and of low frequency, lasting for 14 days. Stage 3: The final stage of elimination. The pain was high-frequency but brief, lasting only about an hour.

This real-world experience demonstrates that a 7 mm kidney stone can indeed pass naturally, and the pain associated with it can be less severe than expected. Monitoring the stone’s progress and seeking medical advice when appropriate can make a significant difference in the outcome.

Conclusion

While the natural passage of a 7 mm ureteric stone is not common, it is still a possibility. Factors such as the stone's size, position, and individual medical history all play a role in determining the likelihood of spontaneous passage. Consulting a urologist and considering medications like Flomax can help improve your chances and manage pain effectively.