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Zamboanga Cancer Care & Radiotherapy
Helping families detect cancer earlier

Early Warning Signs of Cancer You Should Not Ignore

Cancer often starts quietly. Many early symptoms are mild, common, and easy to ignore — but recognizing them early can dramatically improve treatment outcomes.

⭐ Not every symptom below means cancer — but ANY of them lasting more than 2–3 weeks deserves medical attention.

1. Unexpected Weight Loss

Losing weight without dieting or exercise may signal:

  • stomach cancer
  • lung cancer
  • pancreatic cancer
  • thyroid problems

See a doctor if you lose >4–5 kg unintentionally.

2. Persistent Fatigue

Not normal tiredness — but deep exhaustion that doesn’t improve with rest.

Common in:

  • leukemia
  • colon cancer
  • any advanced cancer

3. A Lump or Hard Mass

Lumps that are painless, firm, and growing should always be checked.

  • breast lumps
  • neck masses
  • groin lumps
  • testicular lumps

4. Long-Lasting Cough or Hoarseness

A cough lasting more than 3 weeks may suggest:

  • lung cancer
  • throat cancer
  • thyroid cancer

5. Changes in Bowel Habits

Watch for:

  • blood in stool
  • persistent diarrhea or constipation
  • narrow or pencil-like stools

These may be early signs of colon cancer.

6. Unexplained Pain

Pain that doesn’t respond to medication or has no clear cause may signal:

  • bone cancer
  • pancreatic cancer
  • brain tumor

7. Skin Changes

Warning signs include:

  • new dark spots or moles
  • rapidly changing freckles
  • non-healing wounds

Especially important under hot Zamboanga sun exposure.

8. Difficulty Swallowing

Persistent swallowing problems may indicate:

  • esophageal cancer
  • throat cancer

9. Abnormal Bleeding

Never ignore:

  • vaginal bleeding between periods
  • post-menopausal bleeding
  • blood in urine or stool
  • coughing blood

10. Persistent Fever or Night Sweats

Could be linked to:

  • lymphoma
  • leukemia

When should you worry?

✔ If the symptom lasts more than 2–3 weeks ✔ If it is getting worse ✔ If it interferes with daily activity ✔ If there is unexplained bleeding

What you should NOT do:

What you SHOULD do:

Early detection saves lives

Most cancers are highly treatable when found early — especially breast, cervical, colon, thyroid, prostate, and skin cancers.

Need help understanding your symptoms?

Message us anytime. We can guide you on what steps to take.

This article is for general awareness only and not a substitute for medical advice.