| Stages | Symptoms |
|---|---|
| Early stage | Gradual development of gastroenteritis, pharyngitis, complications due to inflammation of the intestinal wall, mesenteric lymphadenopathy. |
| Excretory for months after abatement of gastroenteritis | |
| Late stage | Articular manifestations: Reactive arthritis in hip, knee, upper ankle, sacroiliac joints, arthralgias, ankylosing spondylitis, rheumatoid arthritis, sacroiliitis |
| Erythema nodosum, iridocyclitis, conjunctivitis, gastrointestinal complaints, abdominal pain, diarrhea, ulcerative colitis, nephritis, insulin-dependent diabetes mellitus, hepatitis (ANA positive, rheumatoid factor positive), myocarditis (rare), central and peripheral nervous system manifestations, multisystem disease | |
| Disease progression in stages with intervals of fewer complaints | |
| Correlation with thyroiditis | |
| Positive LTT | |
| Oscillating serological findings (correlation with disease expression) | |