每个人偶尔都会腹泻、拉稀便、水样腹泻和排便频繁。有时还可能有腹部痉挛和排便增多。腹泻症状的持续时间可能是找出潜在原因的线索。
急性腹泻持续 2 天至 2 周。持续腹泻持续 2 到 4 周。急性和持续性腹泻通常由某种细菌、病毒或寄生虫感染引起。
慢性腹泻比急性或持续性腹泻的持续时间长，一般超过四周。慢性腹泻可能表明有严重疾病（比如溃疡性结肠炎或克罗恩病）或不太严重的状况（比如肠易激综合征）。
Aug. 11, 2023
- Diarrhea. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/digestive-diseases/diarrhea. Accessed April 27, 2023.
- Diarrheal diseases: Acute and chronic. American College of Gastroenterology. https://gi.org/topics/diarrhea-acute-and-chronic/. Accessed April 27, 2023.
- AskMayoExpert. COVID-19: Management and follow-up (adult). Mayo Clinic; 2021.
- Diarrhea. Merck Manual Professional Version. https://www.merckmanuals.com/professional/gastrointestinal-disorders/symptoms-of-gastrointestinal-disorders/diarrhea. Accessed April 27, 2023.
- Khanna S (expert opinion). Mayo Clinic. May 13, 2021.