- A new or growing lesion, asymmetry, irregular borders, several colours, bleeding, crusting, persistent itching or a non-healing sore deserves attention.
- Skin cancer can also occur on palms, soles and beneath nails; a new dark nail streak or changing spot on the sole should not be dismissed.
- A doctor may use dermoscopy and, when necessary, biopsy; photographs can document change but cannot replace examination.
Why visible problems can still be underestimated
Most moles are harmless, but a new or changing spot should not be ignored. Learn practical warning changes.
Skin can show infection, circulation problems, nerve damage or cancer-related change. The absence of severe pain does not prove a lesion or wound is harmless.
What to look for
A new or growing lesion, asymmetry, irregular borders, several colours, bleeding, crusting, persistent itching or a non-healing sore deserves attention.
Track change in size, colour, warmth, swelling, drainage, sensation and healing. A dated photograph can help show evolution but cannot replace medical examination.
What safe early care means
Skin cancer can also occur on palms, soles and beneath nails; a new dark nail streak or changing spot on the sole should not be dismissed.
Keep wounds clean and protected, avoid trauma and address underlying problems such as diabetes or poor circulation. Persistent or worsening problems deserve professional assessment.
Where TCM may fit
A doctor may use dermoscopy and, when necessary, biopsy; photographs can document change but cannot replace examination.
Do not needle, scrape, cup, massage or apply irritating herbal preparations over active infection, open wounds or suspicious changing lesions. Diagnosis and tissue safety come first.
Red flags that should not wait
Rapid change, unexplained bleeding, a non-healing sore, persistent dark nail change or new lymph-node swelling deserves prompt review.
Related reading & Singapore resources
This page provides general health education, not an individual diagnosis or emergency plan. Sudden, severe, worsening or red-flag symptoms should be assessed through appropriate conventional medical or emergency care.