Kidney cancer, also known as renal cancer, starts in the kidneys, the bean-shaped organs responsible for filtering waste from the blood to produce urine.
While kidney cancer often goes unnoticed in its early stages, recognizing the signs and symptoms can lead to early detection and better treatment outcomes. In case you experience the symptoms of kidney cancer, it is essential to consult a healthcare professional for evaluation and diagnosis.
Check out these eight signs of kidney cancer that you should be aware of –
1. Blood in the Urine (Hematuria)

One of the most common symptoms of kidney cancer is blood in the urine, a condition known as hematuria. The urine may appear pink, red, or cola-colored, indicating the presence of blood. While hematuria can be caused by various factors, including urinary tract infections and kidney stones, it is essential to consult a healthcare professional if you notice blood in your urine, as it could be a sign of kidney cancer.
2. Persistent Pain in the Side or Lower Back

Persistent pain in the side or lower back, where the kidneys are located, can be a symptom of kidney cancer. The pain may be dull and constant or sharp and intermittent, and it may worsen over time. While back pain is common and can be caused by many factors, such as muscle strain or injury, if the pain persists or is accompanied by other symptoms, it is important to seek medical attention.
3. Unexplained Weight Loss

Unexplained weight loss, particularly significant weight loss without changes in diet or exercise, can sometimes be a sign of kidney cancer. Cancer cells can disrupt the body’s metabolism, leading to unintended weight loss. If you experience unexplained weight loss along with other symptoms such as fatigue or loss of appetite, it is essential to consult a healthcare provider.
4. Fatigue and Weakness

Feeling tired or weak, even after getting enough rest, can be a symptom of kidney cancer. Cancer cells can cause changes in the body’s metabolism, leading to fatigue and weakness. While fatigue is a common symptom of many conditions, persistent fatigue that interferes with daily activities should be evaluated by a healthcare professional.
5. Swelling in the Legs and Ankles
Kidney cancer can sometimes cause swelling in the legs and ankles, a condition known as edema. Edema occurs when fluid builds up in the body’s tissues, leading to swelling. While edema can be caused by various factors, including heart and kidney problems, persistent swelling should be evaluated by a healthcare provider to rule out kidney cancer as a possible cause.
6. High Blood Pressure (Hypertension)

High blood pressure, or hypertension, is a common condition that can sometimes be a sign of kidney cancer. The kidneys play a crucial role in regulating blood pressure by filtering waste from the blood and balancing fluid levels in the body. When kidney function is impaired, it can lead to high blood pressure. While hypertension can have many causes, including genetics and lifestyle factors, persistent high blood pressure should be monitored and evaluated by a healthcare professional.
7. Fever and Night Sweats

Fever and night sweats can sometimes be symptoms of kidney cancer, particularly if they occur without an obvious cause such as an infection. Cancer cells can cause inflammation in the body, leading to fever and night sweats. While fever and night sweats can be caused by many factors, including infections and hormonal changes, persistent symptoms should be evaluated by a healthcare provider.
8. Appetite Loss and Nausea

Kidney cancer can sometimes cause a loss of appetite and nausea, particularly if the cancer has spread to other parts of the body. Cancer cells can disrupt the body’s normal functioning, leading to changes in appetite and digestion. While appetite loss and nausea can be caused by many factors, including medications and stress, persistent symptoms should be evaluated by a healthcare provider.


