A polysymptomatic condition believed by clinical ecologists to result from immune dysregulation induced by common foods, allergens, and chemicals, resulting in various physical and mental disorders. The medical community has remained largely skeptical of the existence of this "disease", given the plethora of symptoms attributed to environmental illness, the lack of reproducible laboratory abnormalities, and the use of unproven therapies to treat the condition. (From Segen, Dictionary of Modern Medicine, 1992)

Descriptor ID	D018876
MeSH Number(s)	C20.543.312 C21.223
Concept/Terms	Environmental Illness Environmental Illness Environmental Hypersensitivity Illnesses, Environmental Hypersensitivities, Environmental Hypersensitivity, Environmental Illness, Environmental Environmental Hypersensitivities Environmental Illnesses

Below are MeSH descriptors whose meaning is more general than "Environmental Illness".

Below are MeSH descriptors whose meaning is related to "Environmental Illness".

Below are MeSH descriptors whose meaning is more specific than "Environmental Illness".