The diagnosis of celiac disease patients may be delayed by misdiagnosis. Ou
r aim was to evaluate in celiac patients the prevalence of surgery before d
iagnosis. Two hundred forty-four adult celiac patients and 232 controls wer
e retrospectively investigated for surgery before diagnosis of celiac disea
se. The prevalence of surgery was increased in celiac patients versus contr
ols (P = 0.001). Frequency of appendectomy (P = 0.0001), tonsillectomy (P =
0.009), and hernia repair (P = 0.05) were increased in celiac patients ver
sus controls. Appendectomy was related to anemia (P = 0.006) and abdominal
pain (P = 0.005); tonsillectomy was related to diarrhea (P = 0.02) and weig
ht loss (P = 0,04). Appendectomy was elective in 73% of celiac patients and
in 46% of controls. Cosmetic surgery was increased in celiac patients vers
us controls (P = 0.058). In conclusions, surgery before celiac disease diag
nosis is increased in celiac patients compared to controls, as a result of
doctors' misdiagnosis and/or poor health status, which increases the demand
for medical intervention. The frequency of cosmetic surgery in celiac pati
ents may be related to impaired psychological profile of patients.