Signs and Symptoms
Researchers have published conflicting reports concerning whether Blastocystis causes symptoms in humans, with one of the earliest reports in 1916. The incidence of reports associated with symptoms began to increase in 1984, with physicians from Saudi Arabia reporting symptoms in humans and US physicians reporting symptoms in individuals with travel to less developed countries. A lively debate ensued in the early 1990s, with some physicians objecting to publication of reports that Blastocystis caused disease. Some researchers believe the debate has been resolved by finding of multiple species of Blastocystis that can infect humans, with some causing symptoms and others being harmless (see Genetics and Symptoms).
The most commonly reported symptoms are:
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- abdominal pain
- constipation
- diarrhea
- weight loss
- fatigue
- flatulence
Less commonly reported symptoms are:
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- Skin Rash
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- Headache, depression
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- Arthritic symptoms and joint pain
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- Intestinal inflammation
Read more about this topic: Blastocystosis
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