The most common symptom of kidney cancer is fever

The most common symptom of kidney cancer is fever. People may think that fever is just caused by cold and will go away after a few days. In fact, this is very likely a symptom of kidney cancer. Let's take a closer look at the symptoms of kidney cancer . The following is an introduction to the symptoms of kidney cancer.

The main symptoms of kidney cancer include:

1. Hematuria: Hematuria is the most common symptom of kidney cancer, and about 60% of patients have hematuria. It can be macroscopic hematuria and/or microscopic hematuria. Most cases are painless, and sometimes there is blood in the urine. In most cases, hematuria is caused by tumors invading the renal pelvis and calyx, which is a symptom of kidney cancer.

2. Lumbar mass: 10% of patients can feel a mass in the waist or upper abdomen. Sometimes it can be the only symptom. The mass is hard, with an uneven or nodular surface. If the patient is emaciated or the mass is located at the lower pole of the kidney, the mass can be felt during physical examination. If the mass is fixed, it means there is infiltration around the kidney and the prognosis is poor;

3. Lumbar pain: Lumbar pain occurs when the tumor grows and the renal capsule becomes tense, enlarged, or invades surrounding tissues. It manifests as persistent dull pain. When the tumor has invaded the nerves or lumbar spine, it can cause severe and persistent pain. The blood in the hematuria coagulates into cord-like blood clots in the ureter and is discharged with urine, which can cause renal colic, which is a symptom of kidney cancer.

4. Varicocele: When the left renal parenchymal tumor compresses the left spermatic vein, left varicocele often occurs. Due to the presence of cancer thrombus or other obstructions in the vein, the varicose vein does not disappear after lying flat. When the inferior vena cava is invaded, lower limb edema may occur at the same time, which is also a symptom of kidney cancer.

5. Fever, anemia, weight loss, and loss of appetite are common manifestations of malignant tumors. Due to the high malignancy of renal cancer, many patients have obvious systemic symptoms when they seek medical treatment, and even have metastases to the lungs and bones;

6. Fever is also a symptom of kidney cancer. Both low-grade and high-grade fever can occur. The temperature of a persistent high-grade fever may exceed 39-40°C. Most scholars believe that fever is related to the heat source of cancerous tissue. The body temperature returns to normal after the tumor is eliminated. Fever is the only manifestation of kidney cancer in a few patients. Some middle-aged and elderly patients with unexplained fever should be alert to the presence of kidney cancer.

7. Hematuria in kidney cancer patients can cause anemia, but the amount of blood loss in most kidney cancer patients is not enough to cause anemia. Therefore, it is considered that the anemia in kidney cancer patients is mainly due to the tumor growth producing tumor toxins and the destruction of a large amount of kidney tissue, which inhibits the hematopoietic function of the bone marrow. Some patients also have leukemia-like symptoms, and the number of white blood cells in the blood can be as high as dozens of times the normal value.

The above is the explanation given by experts on the symptoms of kidney cancer. I hope it can help you answer your questions. Experts remind everyone that if you suffer from any disease in your daily life, you must not delay treatment. This is very dangerous. Some diseases will worsen or cause other diseases.

For more information, please visit the kidney cancer special topic at http://www..com.cn/zhongliu/sa/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation.