functional disorder

Symptoms without pathology

A functional disorder is a medical condition where symptoms exist without detectable structural or biochemical abnormality.

The body's systems malfunction, but tests reveal nothing wrong.

The term emerged as medicine distinguished organic diseases (with visible pathology) from conditions like irritable bowel syndrome or chronic fatigue.

Some patients find the label dismissive, implying their symptoms aren't real.

psychosomatic

mind-body

Mental-physical relationship

nocebo · placebo · emotional distress · cognitive-behavioral therapy · psychotherapy · psychoeducation · biopsychosocial · stress response · health anxiety

medical

irritable bowel syndrome

Functional gastrointestinal disorder

tension headaches · migraine

stress

anxiety

Persistent apprehensive distress

  • traumaLasting psychological wound
  • burnoutChronic occupational depletion
  • cortisolAdrenal steroid regulating stress

fight-or-flight · hypervigilance · nervous system · tension · overwhelm · chronic stress · adrenal fatigue · panic · stress-induced · flare-ups

invisible

undiagnosed

Not yet medically named

debilitating · invisible illness · validation · disbelief · dismissal · suffering · isolation · awareness · advocacy · support

disruption

dysfunction

Abnormal or unhealthy operation

breakdown · derangement · disorganization · abnormality · anomaly · irregularity · fault · defect · system failure

Opposites
pathological basis

functional disorderneurological disease

Disorder of nervous system

degenerative disease · tumor · infection

health status

functional disorderhealthy

In good physical condition

able-bodied · neurotypical · wellness · good health · mental health

Family

function, functional, functionally, functionality, functions, functioning, functioned, dysfunctional, malfunction

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Negative · Rated G