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 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

42sec

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Does hydronephrosis cause pain?

Patients with hydronephrosis do not all experience pain. In fact, only a minority of patients experience pain. Hydronephrosis is caused by some form of urinary obstruction, such as urinary system stones, tumors, or problems like prostate enlargement, which prevent urine from being excreted smoothly. In this case, the accumulation of fluid can be a long-term, gradual buildup. Patients often adapt to the progression of the condition and do not exhibit obvious symptoms, especially in the early stages. However, some patients may experience pain, such as those with urinary system stones, or pain may occur when a tumor ruptures.

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Written by Zhou Qi

Nephrology

49sec

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What department to see for hydronephrosis?

Patients with hydronephrosis should visit the urology department of a formal hospital, because the conditions causing hydronephrosis are often surgical in nature. The most common cause is urological stones, which block the ureter or the bladder opening, causing urine to accumulate within the urinary system and leading to hydronephrosis. Additionally, patients with benign prostatic hyperplasia may also experience this condition. Tumors in the urinary system may compress the ureter and cause hydronephrosis. Some patients have congenital deformities of the ureter, where changes in the anatomical structure can lead to hydronephrosis. In summary, these conditions often require surgical treatment, thus necessitating consultation at a formal hospital's urology department.

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Written by Li Liu Sheng

Nephrology

58sec

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Is hydronephrosis of both kidneys serious?

Clinically, bilateral hydronephrosis is serious, as it can lead to expansion of the renal pelvis. Long-term bilateral hydronephrosis can compress the renal parenchyma, leading to the development of chronic obstructive nephropathy, and thus cause chronic renal failure. Additionally, because urine cannot be expelled from the body in a timely manner in bilateral hydronephrosis, it is easy to combine with bacterial infections, which can lead to acute pyelonephritis. Patients may experience chills, fever, and severe back pain, as well as hematuria and general fatigue. Therefore, it is essential to identify the cause of bilateral hydronephrosis and treat it based on the nature of the hydronephrosis. Usually, the causes of bilateral hydronephrosis are related to stones, but tumorous diseases, bladder stones, or urethral strictures are also common causes.