Complications

Diarrhea can cause dehydration, which can be life-threatening if untreated. Dehydration is particularly dangerous in children, older adults and those with weakened immune systems.

If you have signs of serious dehydration, seek medical help.

Indications of dehydration in adults

These include:

• Excessive thirst
• Dry mouth or skin
• Little or no urination
• Weakness, dizziness or lightheadedness
• Fatigue
• Dark-colored urine

Indications of dehydration in infants and young children

These include:

• Not having a wet diaper in three or more hours
• Dry mouth and tongue
• Fever above 102 F (39 C)
• Crying without tears
• Drowsiness, unresponsiveness or irritability
• Sunken appearance to the abdomen, eyes or cheeks