Are There Early Signs of Kidney Cancer?

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Knowing Your Risk

Kidney cancer isn’t as common as breast or lung cancer. For most people, the chance of getting kidney cancer in their lifetime is less than two percent, according to the American Cancer Society.

Your risk increases if you smoke, are obese, or have been exposed to chemicals such as asbestos and benzene. Sometimes kidney cancer can run in families. If you’re at high risk, talk to your doctor and watch out for symptoms.

Hard to Find

When someone has skin cancer, they might see an unusual growth on their skin. For example, breast cancer is often found when a woman discovers a lump in her breast. Because the kidneys are so deep inside the body, it’s harder to find kidney cancer just by looking or feeling for growths.

Searching from the Inside

Imaging tests like computed tomography (CT) or magnetic resonance imaging (MRI) can spot cancer in the kidneys. Yet these tests are costly, and they often can’t differentiate between kidney cancer and noncancerous growths.

Usually, doctors only recommend CT or MRI scans for people who are at very high risk for kidney cancer because of an inherited condition, like von Hippel-Landau disease.

Warning Signs of Kidney Cancer

Kidney cancer often doesn’t cause symptoms until the tumor has already grown. The most common symptom is blood in the urine, called hematuria. If the amount of blood is too small to be seen with the naked eye, it can be found on a urine test.

Other Symptoms

Blood in the urine is the main symptom of kidney cancer, but there are other signs too. Other symptoms include:

  • pain in the side or lower back
  • symptoms of an infection, such as fever, fatigue, and an overall sick feeling
  • losing weight without trying
  • swollen ankles

Many of these symptoms can be caused by other illnesses, like the flu or a back injury. But if these symptoms don’t go away, talk to your doctor.

What Your Doctor Might Find

During an exam, your doctor will look for other symptoms of kidney cancer that you couldn’t find on your own. They might press on your abdomen to check for a lump. Or tests might show high blood pressure or a low red blood cell count (anemia).

Kidney Cancer Tests

Many different tests can detect kidney cancer. Urine tests find traces of blood in the urine. Blood tests search for chemicals that the kidneys are supposed to remove from the body.

CT, MRI, and ultrasound scans create pictures of the kidneys and allow doctors to look for growths that may be cancerous. A biopsy removes a piece of tissue from the kidneys to be examined under a microscope for cancer.

What to Do Next

If you do have kidney cancer, your doctor will find out how advanced it is and whether it has spread to other parts of your body. This is called staging. It helps your doctor determine the right course of treatment for you.

Many different treatments are available for kidney cancer. Radiation, chemotherapy, and surgery can help stop the cancer and improve your long-term outlook.

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