The oral cavity and the oesophagus are the main sites of involvement i
n orointestinal candidosis. The clinical pictures of these manifestati
ons are characterized. Involvement of the stomach as well as the small
and large intestine is an exceedingly rare but possible manifestation
. There are obviously no repeatedly occuring characteristical symptoms
, neither have controlled studies confirmed such characteristics. Rece
ntly a discussion has arised - undoubtedly to a large extent influence
d by public media - to explain a variety of in particular gastrointest
inal symptoms as a consequence of an apparent ''mycotic infection of t
he orointestinal. tract'' as ''a new mass disease''. These reports lac
k any scientific basis supported by experimental or clinical studies.
There are similarities to the ''candidiasis hypersensitivity syndrome'
' or ''the yeast connection'', the existence of which has been critica
lly denied by experts. Corresponding references are given. The author
realizes the necessity to oppose this public debate on a critical scie
ntific basis and to answer open questions by controlled studies.