Those small, painless red or purple dots that suddenly appear on your skin—often on your legs, ankles, or feet—are more than just a cosmetic concern. Medically known as "petechiae" or "purpura," these pinpoint spots are a sign of bleeding under the skin and can be a crucial warning signal from your body about underlying health issues, including vascular problems, blood disorders, or, in some cases, infections that require immediate attention.
Ignoring these spots could mean missing a critical window for diagnosis and treatment. This is not about fear—it's about empowerment through awareness. Your skin is often the first place your body sends an SOS.
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What These "Dots" Really Are: A Medical Explanation
These spots are caused by tiny broken capillaries (blood vessels) leaking blood into the skin. They do not blanch (turn white) when you press on them, which distinguishes them from a rash. Their medical names depend on size:
Petechiae: Pinpoint, red/purple dots smaller than 3mm.
Purpura: Larger, bruise-like patches between 4mm and 1cm.
Potential Causes: From Benign to Serious
While sometimes caused by minor trauma or straining, their sudden appearance can indicate:
1. Vascular Inflammation & Weakness
