diarrhea follow up care

Overview

Diarrhea is when you pass loose or watery stools more often than usual. This article explains how to look after yourself or your child after a bout of diarrhea, and when to get medical advice.

Yes. Diarrhea is extremely common, and most adults will experience it a few times each year.

It affects people of all ages, but young children, older adults, and people with weakened immune systems are more likely to become dehydrated.

Symptoms

Common symptoms

• Loose, watery stools
• Cramping or pain in your belly
• Feeling bloated or dizzy
• Feeling sick (nausea) or being sick (vomiting)
• Mild fever
• An urgent need to use the toilet

Symptoms in children

• Dry mouth or lips
• No tears when crying
• Fewer wet nappies or no urine for 6 hours
• Sunken eyes or a sunken soft spot on the head (fontanelle)
• Being unusually sleepy or hard to wake

Symptoms in older adults

• Dizziness or light-headedness
• Confusion or feeling foggier than usual
• Feeling very weak or having trouble walking
• Dry mouth and skin that does not spring back when pinched gently
• Passing little or no urine

Causes

Main causes

• Viral infections, such as norovirus or rotavirus
• Bacterial infections from contaminated food or water (food poisoning)
• Parasites that can be picked up during travel
• Side effects of some medications (ask your doctor or pharmacist)
• Food intolerances, such as lactose intolerance
• Long-term conditions like irritable bowel syndrome (IBS)

Risk factors

• Not washing hands properly after the toilet or before eating
• Drinking unsafe water or eating undercooked food, especially while travelling
• Taking antibiotics (they can disturb the gut's natural balance)
• Having a weakened immune system
• Being very young or very old

When to see a doctor

See a doctor urgently if:

• You have diarrhea for more than 3 days
• You cannot keep fluids down
• You are showing signs of dehydration (dizziness, dark urine, dry mouth)
• Your child is under 1 year and has diarrhea
• You have a high fever that does not improve
• You have recently travelled to a country with poor sanitation

Book a routine appointment if:

• Diarrhea that keeps coming back after each episode
• You have a long-term health problem such as kidney disease or diabetes
• You are pregnant
• You are over 65 and generally becoming weaker

Diagnosis

A doctor usually diagnoses diarrhea by asking about your symptoms, travel history, and any medicines you take. They may also examine you to check for dehydration.

Tests that may be done

• Stool sample to look for bacteria, viruses, or parasites
• Blood test to check for signs of infection or dehydration
• In long-lasting or severe cases, a urine test or a small tube inserted into the back passage (endoscopy) may be arranged

What to expect at your appointment

The doctor will ask questions about when it started, how many times you have been going, what it looks like, and whether you have travelled. They may feel your stomach and check your pulse and blood pressure. Bring a list of any medicines you take.

Treatment

The main treatment for diarrhea is replacing lost fluids and electrolytes (salts) and letting the bowel settle. Most people do not need medicine, but some may need treatment for an infection if it is bacterial or parasitic.

Self-care at home

• Drink plenty of clear fluids, such as water, diluted juice, or soup. Sip small amounts often.
• Use an oral rehydration solution (available from a pharmacy) to replace salts and sugars — follow the instructions on the packet.
• When you feel hungry, eat small, bland meals like plain rice, toast, bananas, or boiled potatoes.
• Avoid dairy, fatty, spicy, or very sugary foods until you feel better.
• Wash your hands with soap and water after using the toilet and before handling food to avoid spreading germs.

Medical treatments

In some cases, a doctor may prescribe medicines to calm the symptoms or treat an underlying infection (such as an antibiotic for a bacterial cause). These are only used when clearly needed. Over-the-counter anti-diarrheal products are not recommended for everyone, so always ask your pharmacist or doctor for advice.

Living with this condition

While recovering, rest as much as possible and stay close to a toilet. Keep a bottle of water near you and drink regularly. You may notice your bowel rhythm takes a few days to return to normal — this is expected.

Lifestyle tips

• Avoid alcohol and caffeine until your stools are firm.
• Avoid heavy physical activity until you have eaten normally for at least a day.
• If you are a smoker, try to smoke less, as smoking can irritate your gut.
• If symptoms keep coming back, keep a food diary to see if certain foods trigger them.

Diet and exercise

After the worst is over, gradually add fibre, fruit, and vegetables back into your diet. Light exercise like walking can help recovery, but wait until you are hydrated and feeling stronger. Avoid intense workouts until you are back to normal.

Mental health and emotional wellbeing

Diarrhea can make you feel embarrassed, anxious, or isolated — especially if it goes on for a long time. It may help to talk to friends or family about what you're going through. If worry is affecting your daily life, speak to a healthcare professional.

Prevention

Good hygiene and safe food handling can prevent many cases. Wash your hands with soap and water before eating, after the toilet, and after handling raw food. Drink safe water and make sure meat and eggs are properly cooked.

Vaccines

There is a vaccine against rotavirus, a common cause of severe diarrhea in young children. It is offered as part of routine childhood vaccinations in many countries. Ask your healthcare provider if your child has had it.

Screening programmes

There is no routine screening for acute diarrhea. If you have long-standing gut symptoms, your doctor may arrange tests such as a stool sample or a camera test to rule out other conditions.

Complications

If left untreated

• Dehydration and electrolyte imbalance (loss of essential salts)
• Kidney injury in severe cases
• In children, failure to gain weight or developmental delay if diarrhea continues for weeks
• Spread of infection to others if hygiene is not maintained

Long-term outlook

For most people, diarrhea is a short, unpleasant episode and recovery is complete. Severe cases and complications are treatable, especially when medical help is sought early. With careful fluid replacement and rest, you should feel back to yourself within a week or two.

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