Common Causes of Small White Spots
1️⃣ Tinea Versicolor
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A fungal infection caused by yeast on the skin.
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Spots may be lighter or darker than surrounding skin, often itchy.
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Common in warm, humid climates.
2️⃣ Vitiligo
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A condition where the skin loses pigment.
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Spots are completely white, well-defined, and can spread over time.
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Usually not itchy or painful.
3️⃣ Pityriasis Alba
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Mostly affects children and young adults.
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Causes faded white patches, often with mild dryness or flaking.
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Usually appears on arms, face, and neck.
4️⃣ Idiopathic Guttate Hypomelanosis
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Small white spots caused by sun exposure and aging.
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Common on forearms and shins in people over 40.
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Spots are benign and permanent, just cosmetic.
5️⃣ Nutritional Deficiencies
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Low levels of calcium, vitamin D, or zinc may sometimes affect skin pigment.
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Usually accompanied by other signs like brittle nails or hair changes.
✅ When to See a Doctor
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Spots spread rapidly or change shape
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Associated with itching, pain, or redness
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You notice other symptoms like fatigue, hair loss, or nail changes
A dermatologist can determine the exact cause and recommend treatments if needed.
💡 Tip: For many harmless causes like sun spots or idiopathic guttate hypomelanosis, moisturizing and sun protection can help keep your skin healthy, though the spots may remain.
If you want, I can also provide 5 home remedies dermatologists recommend for mild white spots that are safe and effective.