Table 1.

Predisposing factors of bezoar-induced small bowel obstruction n (%)

Predisposing factor	Case
Sex
Male	13 (37.1)
Female	22 (62.9)
Age (yr)
< 63	15 (42.9)
≥ 63	20 (57.1)
Symptom
Abdominal pain	23 (65.7)
Abdominal distension	35 (100)
Vomiting	15 (42.9)
Defecation and exhaust stopping	12 (34.3)
Physical sign
Fever	7 (20)
Abdominal protuberance	29 (82.9)
Abdominal tenderness	9 (25.7)
Tenderness and rebound Tenderness	9 (25.7)
Cords	7 (20)
Food intake before the onset
Persimmon, hawthorn, jujube	29 (82.9)
Uncertainty	6 (17.1)
Previous history
Stomach stone or bezoar treatment history	3 (8.6)
Gastroduodenal operation history	19 (54.3)
Other history of abdominal operation	6 (8.6)
Dental status
Teeth sound (partial denture)	9 (25.7)
Partial or total loss of posterior teeth	26 (74.3)