慢性便秘的诊断标准
Chronic constipation
2 or more of the following occurred for at least 12 weeks within the prior 12 months
- Straining in more than 25% of BM;
- Hard stools in more than 25% of BM;
- A feeling of incomplete evacuation in 25% of BM;
- Manual support of defecation in more than 25% of BM;
- Fewer than 3 stools/week.
BM: bowl movement
