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Tuesday, 14/4/2026 | 00:07 GMT+7

Four nighttime symptoms that may signal kidney issues

Leg swelling, frequent nighttime urination, restless legs syndrome, and difficulty breathing, which disrupt sleep, could be indicators of declining kidney health.

Quality sleep is an essential biological process that helps the body recover and recharge, allowing the brain, organs, and tissues to repair cellular damage. Disruptions to sleep can signal kidney damage, and early recognition can help prevent serious complications.

Frequent nighttime urination

One common early sign of kidney disease is nocturia, or waking to urinate more than one time per night. Healthy kidneys typically concentrate urine at night to ensure uninterrupted sleep. However, when kidney function declines, this balance breaks down. Nocturia causes discomfort and affects overall health.

Foamy urine can indicate high levels of the protein albumin, often stemming from kidney issues. Poor kidney function can also lead to blood leaking into the bladder. Blood in the urine often signals kidney stones, tumors, or infections.

Restless legs syndrome at night

Restless legs syndrome (RLS), a condition characterized by an irresistible urge to move the legs, is more prevalent in individuals with kidney disease. This condition links to iron imbalances and the buildup of toxins in the body. The constant need to move prevents deep, restful sleep, leading to daytime exhaustion.

Leg swelling worsens at night

Kidneys play a crucial role in removing excess fluid from the body. When they fail to perform this function effectively, fluid accumulates in tissues, commonly causing swelling in the ankles, lower legs, and feet. Leg swelling that worsens at night is often associated with heart or kidney dysfunction.

These symptoms may initially seem minor, often attributed to stress, aging, or lifestyle factors. However, when they occur repeatedly at night, they could indicate kidney damage. Early medical examination can help identify underlying causes, leading to timely treatment and improved quality of life.

Shortness of breath

In individuals with kidney disease, the body's organs may not produce enough erythropoietin hormone. This hormone signals the body to produce red blood cells, and a deficiency can lead to anemia and shortness of breath. Another cause of shortness of breath is fluid accumulation in the lungs, which occurs when kidneys can no longer filter blood effectively, leading to a buildup of water, salt, and toxins.

By Le Nguyen (Source: WebMD, Times of India)

By VnExpress: https://vnexpress.net/4-trieu-chung-vao-ban-dem-canh-bao-than-khong-khoe-5061279.html
Tags: signs kidney disease

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