(News.am) A child in Vietnam suffers from a bizarre condition that causes her to sweat blood and is triggered by stress.

Doctors believe the unnamed 11-year-old has hematidrosis, a phenomenon poorly understood by science because of its rarity.

The girl, from the Dak Doa district, started to show symptoms of the condition while preparing for her exams a few months ago.

She was initially diagnosed with a skin infection and given a course of medication, but the problem continued and doctors had to reconsider.

Now medics at the Quy Hoa National Leprosy Dermatology Hospital believe that the girl has hematidrosis.

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