A cross-sectional study was conducted to collect the relevant data of college students' mobile phone addiction and FGIDs (IBS, FD) in the form of questionnaire, so as to understand the situation of college students' mobile phone addiction and the incidence of FGIDs (IBS and FD), and explore the correlation, so as to provide new ideas and scientific basis for the prevention, diagnosis and treatment of FGIDs among college students.

This study adopts the method of cross-sectional survey to collect the relevant data of Chinese college students' mobile phone addiction and FGIDs (IBS, FD) in the form of online and face-to-face questionnaire, so as to understand the situation of Chinese college students' mobile phone addiction and the incidence of FGIDs (IBS, FD), and explore the correlation, so as to provide new ideas and scientific basis for the prevention, diagnosis and treatment of FGIDs.

Inclusion Criteria:

• College students from all over the country, over 17 years old, have a physical examination before entering school
• Sign the informed consent form, voluntarily participate and fill in the questionnaire

Exclusion Criteria:

• People with diabetes, hyperthyroidism or hypothyroidism, peptic ulcer, inflammatory bowel disease, digestive tract tumor or severe medical and surgical disease
• History of abdominal surgery (such as esophagus, stomach, small intestine, colon, rectum, appendix, gallbladder, hysterectomy, cesarean section)
• Recently, there are some alarm symptoms, such as relieving black stool, bloody stool, hematemesis, abnormal anemia, fever, abnormal weight loss (no intention to lose weight, weight loss 5 kg in 3 months), change of defecation habits, dysphagia and so on
• In the past 4 weeks, he has taken drugs that affect the judgment of gastrointestinal symptoms, such as anti-inflammatory painkillers, diazepam drugs, anti-anxiety drugs, depressants and so on

College students over the age of 17 across the country