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Most cases of scabies are diagnosed by describing the symptoms to the doctor who will examine the skin. There is no blood test for scabies, and delays in diagnosis or misdiagnosis are common in low-prevalence areas.
Other conditions are sometimes confused with scabies. The scabies mite has no relation to body lice, although the symptoms may be similar. Scabies is sometimes confused with bedbug bites, but in contrast to scabies, bedbugs are visible to the naked eye and can live for long periods of time without feeding. Chiggers are a type of mite that can feed off human blood, but unlike scabies, they are acquired through contact with vegetation and feed for only a few days. Less commonly, the rashes of other skin diseases such as ringworm, shingles, eczema, allergic reactions (hives), or impetigo may be confused with that of scabies.
Medically Reviewed by a Doctor on 7/7/2014
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