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How long does it take to pass a kidney stone?

How long does it take to pass a kidney stone.“Medicine to stone removal” can say to the expectation of every kidney stone patient, but the effect of taking medicine to remove the stone effect many factors. According to experts from the Changsha Jingshi Stone Hospital, the treatment has its strict indications, and it affects by both internal and external factors. It recommends treating patients with kidney stones symptomatically and not using drugs blindly and privately.

Whether drugs can be used to remove stones is related to the five major internal factors.


Drug stone removal has strict indications related to the size of the kidney stone, its location, the presence or absence of obstructive water, the patient’s ureter and urethra, and the composition of the rock.

1. The size of kidney stones: How long does it take to pass a kidney stone

 Ureteral lumens vary in size, with an average diameter of only 2 to 5 millimeters, and there are three criticisms. The average diameter of the urethra is only about 5 millimeters, so kidney stones below 6 millimeters are more likely to excrete.

2. The location of kidney stones: How long does it take to pass a kidney stone

. If the stone locates in the lower calyx of the kidney and the junction of the renal pelvis and ureter is higher than the stone part, the stone is challenging to discharge from the body. The calculus with a smooth surface located in the upper calyx and can move in the calyx has a greater chance of being released after taking medicine.

3. Whether there is urinary tract obstruction below the stone

If there is no obstruction and the urine discharge smoothly, the chance of taking medicine to remove rocks is higher at this time.

4. Whether there is ureteral stricture or urethral stricture.

 Part or all of the inner diameter of the ureter lumen is not smaller than the average level. You can try to take medicine to expel stones. In addition, if there is no congenital urethral stricture, inflammatory urethral stricture, or traumatic urethral stricture, you can try to take medicine to remove stones.

5. The specific composition of the stone: How long does it take to pass a kidney stone

Kidney stones divide into calcium-containing stones and non-calcium stones. Calcium-containing stones are generally difficult to eliminate by drug dissolution therapy. Only stones with unique ingredients, such as uric acid stones and cystine stones, can remove stones.

Therefore, under normal circumstances, small stones with a smooth surface located in the upper and middle calyx can move without obstruction. There is no obstruction of the urinary tract below the rocks. There is no abnormal ureter and urethral stricture in the patient. Under the premise of this, you can try stone-eliminating drugs under the guidance of a doctor.

The stone-removal process is affected by external factors, so it is recommended to treat symptomatically

and drink a lot of water to increase urine output, urinating frequently. And exercising more to increase the chance of stone excretion, patients with kidney stones. Those who try drugs to remove stones need to pay attention to the urinary system color Doppler ultrasound review every 1 to 2 weeks to understand the rocks. Whether there is a change in position, whether there is enlargement. Whether there is an obstruction in the process of discharge.

In particular, it is essential to pay attention to the fact that during the downward discharge of kidney stones. If they stay in the ureter for more than three weeks, adhering to the ureteral wall is easy. And even inflammatory polyp proliferation and enveloping rocks may cause ureteral obstruction. Cause a series of complications such as water accumulation and infection.

It can see that taking medicine and dispelling stones limit by internal factors. And there are various risks in the discharging process. The majority of kidney stone patients should treat symptomatically under the guidance of a doctor. And do not use drugs blindly so as not to delay the condition and damage the kidney function.
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