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When to Worry and What to Do When Your Toddler has Diarrhoea

  • Sep 25, 2025
  • 4 min read

Updated: Oct 16, 2025

When your toddler suddenly develops diarrhoea, it can be upsetting for the whole family. Loose, watery stools, frequent trips to the toilet or potty, and a child who seems less energetic than usual can leave you wondering, is this just a short-lived tummy bug, or is something more going on?


Child in yellow sweater with daisy patterns holds stomach, seated on a bed with blue pants. Green and blue pillows in the background.

At Joyful Seeds Paediatric & Development Clinic, located in Bukit Timah, Dr Charmaine Teo and Dr Martha Liu see many children with toddler diarrhoea each year. While most cases are mild and resolve with home care, we understand how worrying it can be when your little one is uncomfortable, especially if you are unsure when to seek help. This guide will walk you through what to look out for, what you can do, and how we can support you.


Understanding Diarrhoea in Toddlers

Diarrhoea means your child is passing loose or watery stools more than three times a day. It often comes on suddenly and may be accompanied by other symptoms like stomach cramps, a mild fever, or a change in appetite.


In toddlers, diarrhoea is most commonly caused by a viral infection, often referred to as gastroenteritis or a “stomach flu.” These infections spread easily among children, particularly in childcare or playgroup settings.


While the illness itself is usually short-lived, the real risk comes from dehydration, when the body loses too much fluid and important salts. Young children can become dehydrated more quickly than adults, which is why careful monitoring and fluid replacement are so important.


Why Toddler Diarrhoea Happens

There are several reasons why toddlers can develop diarrhoea. Understanding these can help you manage your child’s symptoms and prevent future episodes.


Viral Infections

Viruses such as rotavirus are the most common cause. They spread easily from person to person and through contact with contaminated surfaces or food.


Bacterial Infections

Less common in Singapore but still possible, bacteria like salmonella or shigella can cause more severe diarrhoea, often accompanied by higher fever or blood in the stools.


Food-Related Causes

Some toddlers may react to certain foods or drinks, especially if consumed in large amounts. Excessive fruit juice, for example, can sometimes lead to loose stools.


Antibiotic-Related Diarrhoea

If your child has recently been on antibiotics, the natural balance of bacteria in their gut may be temporarily disrupted.


Food Intolerance or Sensitivity

Some children may have difficulty digesting certain ingredients, such as lactose in dairy products.


Signs That Mean You Should See a Doctor

Most cases of toddler diarrhoea improve on their own, but there are certain symptoms that mean your child should be checked promptly:


  • Signs of dehydration, such as fewer wet nappies, dry mouth, sunken eyes, or unusual drowsiness

  • Blood or mucus in the stools

  • Persistent vomiting, especially if your child cannot keep fluids down

  • A high fever that is not settling

  • Severe or worsening stomach pain

  • Diarrhoea lasting more than three days without improvement


If you notice any of these signs, it is safest to seek medical attention. At Joyful Seeds Paediatric & Development Clinic, Dr Charmaine Teo and Dr Martha Liu can assess your toddler, identify the likely cause, and guide you on the right treatment.


How to Care for Your Toddler at Home

For mild diarrhoea without red flags, supportive care at home is often enough to help your toddler recover.


Keep Them Hydrated

Offer frequent sips of fluid, even if your toddler does not feel like drinking much. Oral rehydration solutions are ideal as they replace lost salts as well as fluid. Water, diluted juice, clear broths, and barley water are also good options.


Offer Gentle, Familiar Foods

Once your child is interested in eating, reintroduce small portions of easy-to-digest foods such as porridge, plain rice, toast, or bananas. Avoid fatty, fried, or very sugary foods until their stools return to normal.


Let Them Rest

A quiet day at home can help your child recover faster. Give them a comfortable space to rest and play calmly.


Monitor Closely

Check for signs of dehydration, changes in stool, or any worsening symptoms. Keeping a simple record of fluid intake, meals, and nappies can be useful.


Helping Prevent Future Episodes

While you cannot prevent every case of toddler diarrhoea, there are steps you can take to reduce the risk:


  • Encourage thorough handwashing before meals and after toileting

  • Keep utensils, cups, and bottles clean and sanitised

  • Ensure food is well-cooked and stored safely

  • Limit sharing of food and utensils between children

  • Keep your child’s vaccinations up to date, including the rotavirus vaccine, which can greatly reduce the risk of severe viral diarrhoea


How Joyful Seeds Supports You and Your Toddler

When you visit Joyful Seeds Paediatric & Development Clinic, located in Bukit Timah, you can expect a calm and welcoming environment where your child is cared for gently and thoroughly. Dr Charmaine Teo and Dr Martha Liu will listen to your concerns, examine your child with kindness, and explain everything in a way that is easy to understand.


Our aim is to ensure your toddler feels better as quickly as possible and to give you peace of mind as a parent. Whether the solution is simple reassurance, advice for home care, or treatment in the clinic, you will leave with a clear plan and the confidence to carry it out.


Comfort for Children, Reassurance for Parents

Diarrhoea can be tiring for everyone involved, but with the right care and support, most children bounce back quickly. At Joyful Seeds, we are committed to being there for your family every step of the way, offering expertise, empathy, and a listening ear.


If your toddler is experiencing diarrhoea and you are unsure whether to worry, reach out to us. Together, we can ensure your child stays safe, hydrated, and on the road to feeling better.


Conclusion

In conclusion, toddler diarrhoea is a common issue that many parents face. Understanding the causes, symptoms, and treatment options is crucial. By following the guidelines provided, you can manage your child's condition effectively. Remember, if you have any concerns, do not hesitate to consult with healthcare professionals. Your child's health and comfort are paramount.


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