6. Skin Changes, Moles, or Sores That Don’t Heal
What It Means
Changes in moles, freckles, or skin lesions may indicate skin cancer. Sores that don’t heal or bleed easily can also be a warning sign.
Possible Causes
- Melanoma may cause a mole to change in size, shape, or color.
- Basal cell carcinoma appears as a shiny bump or sore that does not heal.
- Squamous cell carcinoma often looks like a red, scaly patch or ulcer.
When to Seek Help
Use the ABCDE rule to assess moles:
- A – Asymmetry
- B – Border irregularity
- C – Color changes
- D – Diameter larger than a pencil eraser
- E – Evolving (changing in size, shape, or color)
If you notice any of these changes, see a dermatologist immediately.
7. Persistent Pain
What It Means
Long-lasting or unexplained pain in the body may be a sign of bone, brain, or internal organ cancer.
Possible Causes
- Bone cancer can cause deep, aching pain in bones or joints.
- Brain tumors may lead to chronic headaches that don’t improve with medication.
- Ovarian or pancreatic cancer can cause abdominal or back pain.
When to Seek Help
If pain persists for weeks, worsens, or has no clear cause, consult a doctor.
8. Difficulty Swallowing or Indigestion
What It Means
Frequent difficulty swallowing, heartburn, or indigestion that does not improve may indicate esophageal, stomach, or throat cancer.
Possible Causes
- Esophageal cancer can cause food to get stuck in the throat.
- Stomach cancer may lead to bloating, nausea, or pain after eating.
- Throat cancer can cause pain while swallowing or voice changes.
When to Seek Help
If swallowing problems persist for more than two weeks, see a doctor for an evaluation.
