What are the symptoms of hydronephrosis?

Written by Zhou Qi

Nephrology

Updated on September 09, 2024

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Hydronephrosis is often due to obstructive factors in the urinary system, such as stones, tumors, prostate hyperplasia, etc., causing urine to not be excreted smoothly, so patients may have symptoms related to obstructive kidney disease. Since the kidney is in a state of water accumulation, the ureter may experience spasms, so patients may experience pain in the lower back area. Especially in patients with kidney stones leading to hydronephrosis, as these kidney stones can cause severe pain. Furthermore, patients may experience hematuria. If the hydronephrosis is bilateral, it can lead to a sudden decrease in urine output and acute renal failure.

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Written by Zhou Qi

Nephrology

47sec

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Will hydronephrosis cause facial swelling?

In cases of hydronephrosis, it is not certain whether facial swelling will occur. Since the human body has two kidneys, the kidneys have strong compensatory capabilities. Even if one kidney is completely damaged, if the other kidney remains healthy, the remaining kidney can still perform the function of two kidneys. It can ensure sufficient excretion of water and metabolic waste. When water is sufficiently excreted, swelling should not occur. However, if both kidneys are affected by hydronephrosis, or if the opposite kidney also has problems, then the ability of the kidneys to excrete water may decrease. With both kidneys having issues, it can lead to poor and insufficient water excretion, consequently causing swelling, such as bilateral eyelids, facial areas, and both ankles.

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Written by Chen Feng

Urology

57sec

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How to relieve pain from hydronephrosis

Hydronephrosis accompanied by pain is generally caused by kidney stones lodged in the ureter leading to renal colic, and the stones in the ureter can cause urinary obstruction, thus presenting as hydronephrosis. To alleviate the pain in such cases, treatment methods are chosen based on the size of the stone. If the kidney stone is relatively small and estimated to be able to pass by itself into the bladder, temporary use of pain relief medication can be administered for symptomatic treatment, along with medication that dilates the ureter to expand its diameter, facilitating the expulsion of the stone. If the stone is large and predicted not to pass on its own, temporary symptomatic treatment with pain relief medication can be used. Meanwhile, after completing preoperative examinations, surgery can be performed to remove the stone, which can also completely alleviate the pain symptoms.

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Written by Chen Feng

Urology

1min 2sec

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Is hydronephrosis prone to recurrence?

Whether hydronephrosis is prone to recurrence depends on the cause of the hydronephrosis. Common causes of hydronephrosis in clinical practice are as follows: First, urinary tract stones. When a stone is lodged in the ureter or urethra, it can cause urinary obstruction. The urine produced by the kidneys cannot be expelled in time, leading to hydronephrosis. If the stones in the urinary system can be completely removed, it generally does not recur easily. However, if there are still quite a few stones in the kidney or bladder after clearing the urinary tract, it is more likely to recur, because the stones might move down, get lodged in the ureter or urethra again, and cause hydronephrosis. Second, prostate enlargement. Hydronephrosis caused by prostate enlargement is generally more likely to recur because the prostate continues to grow in size. Even if the enlarged prostate is surgically removed, it still might lead to urethral stricture, thereby causing hydronephrosis again.

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Written by Zhou Qi

Nephrology

48sec

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What tea to drink for hydronephrosis

Before hydronephrosis is adequately treated and before the obstruction in the urinary system is resolved, in areas such as the renal pelvis and calyces where there is fluid accumulation, it is advised that patients should not drink tea and should try to reduce their fluid intake. This is because the fluids cannot be excreted through the kidneys, and drinking large amounts of water at this time could worsen the obstruction and may also lead to edema. Therefore, patients are advised not to drink tea until the hydronephrosis is resolved. Once the causes of urinary tract obstruction, such as urinary system stones or tumors, have been removed, patients can increase their water intake, but it is still recommended not to drink tea because tea contains considerable amounts of oxalate, which can lead to the recurrence of kidney stones.

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Written by Zhou Qi

Nephrology

50sec

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Can you have sex with hydronephrosis?

Before the complete resolution of hydronephrosis, it is recommended that patients avoid sexual intercourse. This is because hydronephrosis indicates the presence of obstructive factors in the urinary system, causing urine to not be excreted smoothly. Urine accumulates within the urinary system, causing dilation of the renal pelvis, calyces, and ureter. If urine cannot be excreted, bacteria can easily ascend from the urethral opening into the urinary system, causing an inflammatory response. If patients engage in sexual intercourse during this time, bacteria at the urethral opening can easily be pressed into the bladder, ascending and potentially causing pyelonephritis or cystitis. Therefore, it is best for such patients to avoid sexual intercourse until the hydronephrosis has been thoroughly addressed.