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What causes cancer pain, and what do the symptoms depend on?

ANSWER

There are many causes of cancer pain, but it often happens when a tumor presses on nerves or organs, or when cancer cells invade bones or organs. Chemotherapy, radiation, or surgery also may cause pain.

The symptoms of cancer pain vary from person to person. The amount of pain may depend on the type of cancer, the stage or extent of the disease, and the person's pain threshold (tolerance for pain). Pain can range from mild and occasional to severe and constant.

From: Pain Management: Cancer Pain WebMD Medical Reference

SOURCES:

National Institutes of Health. 

American Cancer Society.

Reviewed by Melinda Ratini on May 15, 2019

SOURCES:

National Institutes of Health. 

American Cancer Society.

Reviewed by Melinda Ratini on May 15, 2019

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What medicines are used to treat mild to moderate cancer pain, and what can be side effects?

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