Today, more people are living longer after a cancer diagnosis than ever before. Thanks to improved medical technology and routine cancer screenings, many cancers are now detected earlier — when treatment is often more effective and outcomes are better.
It’s important to remember that experiencing one or more of the symptoms below does not automatically mean you have cancer. However, if these signs persist, speaking with a healthcare professional is the safest step.
Here are five warning signs you should pay attention to.
1. Unexplained Weight Loss
Losing weight without trying may seem like good news at first, but sudden or unexplained weight loss can sometimes signal an underlying health issue.
If you lose 10 pounds (about 4.5 kg) or more without changes in diet or exercise, it’s wise to consult your doctor. In rare cases, unexplained weight loss can be an early sign of cancer.
2. Persistent Fatigue
This type of fatigue is different from normal tiredness after a busy day. Cancer-related fatigue is often severe and does not improve with rest.
Cancer cells can consume the body’s nutrients as they grow, leaving your body feeling drained. While fatigue has many possible causes — most unrelated to cancer — ongoing exhaustion that affects daily life should be medically evaluated.
3. Recurring or Unexplained Fever
Fever commonly occurs with infections such as colds or the flu and usually resolves on its own. However, certain patterns of fever may require closer attention.
You should speak with a doctor if:
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Fever occurs frequently, especially at night
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There are no clear signs of infection
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You experience persistent night sweats
Recurring fever can sometimes be linked to underlying medical conditions, including cancer.
4. Persistent or Unexplained Pain
Pain can result from many health conditions, most of which are not serious. However, pain that continues without a clear cause should never be ignored.
Cancer may cause pain when:
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A tumor presses on surrounding tissues or nerves
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Chemicals released by cancer affect the body
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Cancer spreads to other areas (metastasis)
If pain lasts for weeks or continues to worsen, consult a healthcare professional for proper evaluation.
5. Changes in the Skin
Your skin can reveal important clues about your overall health. Certain skin changes may require medical attention.
Watch for:
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Yellowing of the skin or eyes (jaundice)
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Moles that change shape, size, or color
Contact your doctor if a mole:
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Is asymmetrical
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Has uneven or jagged borders
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Changes color or becomes darker
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Grows larger over time