Cancer doesn’t always announce itself with dramatic symptoms—but it often sends subtle signals long before a diagnosis. While these signs don’t automatically mean cancer, they do warrant medical attention if they’re new, persistent, or unexplained.
Here are 5 key warning signs recognized by oncologists and major health organizations (like the American Cancer Society and CDC):
1. Unexplained Weight Loss
- Losing 10+ pounds without trying—especially over a few months—can be an early sign of cancers like pancreatic, stomach, esophageal, or lung cancer.
- Often accompanied by loss of appetite or feeling full quickly.
✅ When to see a doctor: If you lose weight without dieting, exercising, or changing habits.
2. Persistent Fatigue That Doesn’t Improve with Rest
- Not just “tired from work”—but deep, unrelenting exhaustion that lasts weeks and isn’t relieved by sleep.
- Common in leukemia, colon cancer, and other malignancies due to anemia or immune response.
✅ When to see a doctor: If fatigue interferes with daily life for more than 2–3 weeks.
3. Unusual Bleeding or Discharge
