Is blood in urine a sign of kidney cancer?

Although blood in the urine is often caused by common things like urinary tract infections, kidney stones or minor trauma, if it persists, it can be a sign of a serious underlying tumor.

Hematuria is the presence of red blood cells in the urine. Hematuria can appear and then “disappear” in episodes, which can be mistaken for harmless. However, even if it only appears once, this condition still needs to be medically checked.

When is blood in urine related to kidney cancer?

According to research published in the US National Center for Biotechnology Information (NCBI), persistent hematuria can be an early sign of kidney cancer.

The kidneys filter waste from the blood and maintain fluid balance. When a tumor develops, the small blood vessels in the kidneys can become damaged, causing blood to leak into the urine. Notably, kidney cancer often has no obvious symptoms in its early stages. Blood in the urine is sometimes the first warning sign, appearing before pain or swelling.

Therefore, see a doctor immediately if there is blood in the urine accompanied by one or more of the following signs:

• Hip pain or pain in one side of the back that does not improve with rest.
• Weight loss, fatigue, and loss of appetite.
• A lump or swelling near the kidney may be felt.
• Mild fever, night sweats.

Blood in the urine accompanied by symptoms of flank pain or persistent pain in one side of the back can be a sign of kidney cancer.

PHOTO: AI

In addition, some factors such as smoking, age (over 50 years old), family history of kidney or urinary tract cancer, people with high blood pressure and obesity... can also increase the risk of the disease, according to Times Of India (India).

People in high-risk groups should have regular health check-ups to detect early signs of abnormalities. Early diagnosis plays a key role in treating kidney cancer, helping to improve recovery and prolong life.

Other common causes of blood in the urine

Although kidney cancer is a serious cause, there are cases of hematuria originating from the following causes:

Urinary tract infection (UTI): Causes inflammation of the urinary tract lining, leading to microscopic or gross blood in the urine. Common symptoms are painful urination, frequent urination, and cloudy urine.

Kidney stones or bladder stones : Stones can rub against and cause bleeding in the urinary tract, often accompanied by back or flank pain.

Prostate enlargement (in men): An enlarged prostate can irritate the bladder or urethra, leading to blood in the urine.

Vigorous exercise : Some people may experience temporary microscopic hematuria after running or strenuous exercise.

Medications or trauma : Anticoagulants, certain antibiotics, or trauma to the kidney area can all cause hematuria.

Source: https://thanhnien.vn/tieu-ra-mau-co-phai-la-dau-hieu-cua-ung-thu-than-185251027155440561.htm