The short answer
Most pain is not cancer, but pain that is new, lasting, and unexplained can sometimes be an early sign — such as bone pain, ongoing headaches, or belly pain. Persistent, unexplained pain should be checked.
Most pain is not cancer, but ongoing, unexplained pain can sometimes be a warning sign.
Pain can be an early sign of some cancers, such as bone or testicular cancer.
For most cancers, pain is more common once the cancer has grown or spread.
New, lasting pain with no clear cause is the pattern worth checking.
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The full explanation.
The simple version
Pain is one of the most common experiences there is, and the vast majority of pain is not cancer. But pain that is new, lasting, and unexplained can occasionally be a warning sign, so it is worth checking rather than ignoring.
When pain can signal cancer
For most cancers, pain is not an early sign and appears more once a cancer has grown or spread. But some cancers cause pain earlier — for example, bone cancer often causes bone pain, and testicular cancer can cause discomfort in a testicle.
New, lasting, unexplained pain is the pattern worth checking.
Most pain is not cancer
Injuries, arthritis, infections, headaches, and many everyday conditions cause pain far more often than cancer. A doctor can help find the cause of pain that lingers.
When to see a doctor
See a doctor for pain that is new and unexplained, lasts more than a couple of weeks, or keeps getting worse, especially if it comes with other symptoms like weight loss or a lump.
Words to know
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Common questions
▸Is pain a common sign of cancer?
For most cancers, pain is not an early sign and tends to appear once a cancer has grown or spread. But some cancers, like bone cancer, can cause pain early.
▸What kind of pain should I check?
Pain that is new, lasts more than a couple of weeks, keeps getting worse, or has no clear cause is worth checking — for example ongoing bone pain, headaches, or belly pain.
▸Does pain mean the cancer is advanced?
Not necessarily, and most pain is not cancer at all. But because lasting pain can sometimes signal a problem, it should be evaluated rather than ignored.
▸When should I see a doctor?
See a doctor for pain that is new and unexplained, lasts more than a couple of weeks, or keeps getting worse, especially with other symptoms.
Questions to ask your doctor
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