يُصاب الجميع بالإسهال من حين لآخر- وهو إخراج براز لين سائل على نحو متكرر. كما يمكن أن تُصاب بتقلصات مؤلمة في البطن وتُخرج براز بكميات أكبر من المعتاد. يمكن التوصل إلى السبب الكامن للإصابة بالإسهال بمعرفة طول المدة التي تستمر خلالها الأعراض.

إذ يستمر الإسهال الحاد لفترة تتراوح من يومين إلى أسبوعين. أما الإسهال المستديم، فيستمر لمدة تتراوح من أسبوعين إلى أربعة أسابيع. عادةً ما يحدث الإسهال الحاد والمستديم على السواء بسبب عدوى بكتيرية أو فيروسية أو طفيلية من نوع ما.

يستمر الإسهال المزمن لفترة أطول من الإسهال الحادة أو المستديم، وعادةً ما تكون أكثر من أربعة أسابيع. قد يشير الإسهال المزمن إلى وجود اضطراب خطير، مثل التهاب القولون التقرحي أو داء كرون، أو حالات أقل حدة، مثل متلازمة القولون المتهيج (IBS).

16/06/2020

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