Burrows are a classic sign of scabies. The tiny, gray, irregular tracks on the skin are created as the adult mites tunnel under the epidermis. They are usually linear or s-shaped and occur in the same areas as the rash. Women may also notice burrows under the breasts. Burrows are very distinctive and easy to identify, but may not appear in mild infections, which makes milder forms more difficult to diagnose; doctors may mistake symptoms for hives or eczema.
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