What is the impact of diarrhea on patients

If diarrhea has a long course, fasting time is too long or long-term calorie deficiency can cause malnutrition and various vitamin deficiencies, forming a vicious circle, leading to adverse consequences. For example, vitamin a deficiency causes dry eye and keratomalacia, vitamin d deficiency causes hand and foot convulsions, etc. In addition, prolonged diarrhea may lead to reduced systemic immunity and secondary infection.