1. Black or Dark Brown Dots with Irregular Borders
These could indicate melanoma, the deadliest form of skin cancer.
Unlike regular moles, melanoma spots tend to grow and change shape over time.
They often have uneven color, combining shades of brown, black, red, or even blue.
2. Red or Pink Dots That Persist
Basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) often present as reddish, scaly patches or sores that don’t heal.
These spots may appear shiny, crusted, or ulcerated.
BCC and SCC are less aggressive than melanoma but still require prompt treatment to prevent further complications.
3. Clusters of Small Red or Purple Dots
These may be signs of blood vessel issues or more serious conditions like leukemia or Kaposi’s sarcoma, a rare type of cancer often associated with weakened immune systems.
If these dots appear suddenly and are accompanied by other symptoms such as fatigue or easy bruising, immediate medical consultation is necessary.
4. Dark Dots Under the Nails
A small black or brown spot under a fingernail or toenail that does not grow out with the nail could be a sign of subungual melanoma.
This type of melanoma is often mistaken for a bruise but does not fade over time.
If you notice a persistent dark mark under your nail, consult a dermatologist.
The ABCDE Rule: A Guide to Spotting Skin Cancer
One of the most effective methods for identifying potentially cancerous spots is the ABCDE rule. This guideline helps differentiate between harmless moles and concerning skin changes:
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