When should you worry about diarrhoea if you have cholera?

Diarrhoea is a very common presentation of Cholera. The illness can produce large amounts of watery stool, so the main concern is rapid loss of water and salts rather than the stool itself. Thirst, dry mouth, weakness, dizziness, passing little urine, or unusual sleepiness can signal dehydration. Vomiting may make replacing fluids harder.

A person can become seriously unwell even when there is no fever. Young children, older adults, pregnant people, and anyone already dehydrated need particularly prompt assessment.

Start oral rehydration solution if the person is awake and able to swallow. Give frequent small sips, and continue after each loose stool. Follow the packet directions exactly; do not dilute it with extra water. Keep breastfeeding if relevant. Avoid alcohol and very sweet drinks, which can worsen fluid loss.

Wash hands carefully after using the toilet and before preparing food. Do not prepare food for others while diarrhoea is active. Cholera may require monitored rehydration and prescribed treatment, so home fluids should not delay medical evaluation.

Contact emergency services or go to an emergency department if there is fainting, confusion, severe weakness, cold or clammy skin, very little urine, repeated vomiting, or inability to keep fluids down. Seek urgent assessment for blood in stool, severe abdominal pain, or diarrhoea that is rapidly worsening.

Do not wait for symptoms to settle if cholera is suspected or diagnosed. Tell the clinician about recent travel, unsafe water or food exposure, the number of episodes, and how much fluid has been taken.

Ask whether oral or intravenous rehydration is needed, how to monitor urine and alertness, whether testing or antibiotics are appropriate, and how to reduce spread to household members.