Why would someone get uremia?

Written by Huang Feng Fei

Urology

Updated on September 07, 2024

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Uremia, also known as end-stage renal failure, has many causes. Common surgical conditions include urological obstructions such as urethral blockage, kidney tumors, malformations, kidney cancer, and others, as well as numerous kidney cysts, all of which can lead to renal failure. Common internal medicine causes include chronic glomerulonephritis, long-standing hypertension, hypertensive nephropathy, diabetes, diabetic nephropathy, etc., which can also lead to renal failure. In summary, end-stage renal failure is referred to as uremia.

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Symptoms of pre-uremia

The pre-uremic stage is the period of chronic renal failure. During the pre-uremic stage, many patients may have no symptoms at all. However, some patients do experience many uncomfortable symptoms, such as back soreness and weakness, fatigue, and feeling cold easily. During this stage, patients may also experience nausea and vomiting, especially pronounced nausea after waking up in the morning, as well as weight loss. Some patients in the pre-uremic stage exhibit symptoms of edema, which can occur in the eyelids, facial area, or in both lower limbs. Additionally, patients may experience feeling cold, anemia, and an increased frequency of urination at night. Of course, some patients may also experience itching of the skin on both lower limbs.

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Precursors of uremia

The kidneys have a very strong compensatory ability. When kidney function is slightly impaired, they can generally still handle the basic physiological functions of the human body through compensation, so patients may feel that everything is normal. Despite the fact that the occurrence and development of uremia is a long and gradually worsening process, which can sometimes be very severe, it is still possible to detect early signs of uremia if one actively seeks them out early on. Early indications of uremia can be identified in time by going to the hospital for urine and blood tests. The early signs of uremia often manifest as general fatigue, which is the symptom most easily overlooked. Other symptoms of early uremia include edema, especially noticeable swelling of the eyelids and facial area after waking up in the morning. If it develops into systemic or persistent edema, the condition is already very serious. Additionally, early-stage uremia patients may also experience an increase in the frequency of nocturnal urination and more foam in the urine, as well as increased blood pressure, and even dizziness, headaches, and a lack of appetite. These are all early signs of uremia.

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Is uremia hereditary?

Uremia is not actually an independent disease, so it's difficult to say that uremia is hereditary. Uremia refers to a condition where the kidneys are 90% damaged. However, there are many reasons that can cause more than 90% of kidney tissue damage; among these, some are genetic diseases, but most are not hereditary. Common causes of hereditary uremia include diabetes, as well as primary chronic glomerulonephritis, hypertension, urinary system stones, and even prostate tumors, allergic purpura, etc., which can all cause kidney damage. These factors are generally not genetic diseases. However, there are very few causes of uremia that are genetic diseases, mainly including autosomal dominant polycystic kidney disease.

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Is uremia cancer?

Uremia is not cancer. Chronic kidney failure refers to the presence of various kidney diseases that lead to a progressive and irreversible decline in kidney function, culminating in a series of symptoms and metabolic disorders that form a clinical syndrome, commonly known as chronic kidney failure. The end stage of chronic kidney failure is what is often referred to as uremia. Uremia is not a separate disease, but a clinical syndrome common to various late-stage kidney diseases. It is a symptom consisting of a series of clinical manifestations that occur when chronic kidney failure enters its terminal stage. Typically, this includes disturbances in water and electrolyte acid-base metabolism, with metabolic acidosis and water-electrolyte imbalance being the most common.

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Does uremia cause blood in urine?

Patients with uremia may experience hematuria, but not all patients will do so. Uremia refers to a condition where over 90% of the patient's kidney tissue has been damaged. Due to the destruction of kidney tissue, when blood passes through the kidneys, it is indeed possible that red blood cells will leak from the glomeruli into the urine. Therefore, patients with uremia may exhibit signs of hematuria, especially those caused by primary chronic glomerulonephritis. If the uremia is caused by tumors or kidney stones leading to urinary obstruction, this situation can cause bleeding in the ureters or bladder, also resulting in hematuria. However, most patients with uremia have a very low chance of experiencing hematuria because the vast majority of their kidney tissue has been destroyed, even up to 100%, leaving no urine production, and thus no blood in the urine. If an anuric patient exhibits hematuria, the possibility of stones, tumors, or urinary tract infections should be considered.