ColdandSwimmingLessons:CanYourChildStillGointheWater?[2026]

The Short Answer

A runny nose, sneezing child, and the thermometer ready. Every parent with a child in swimming lessons knows the question: is the child going to the lesson today or not? Being too strict means unnecessarily missing a lesson, being too lenient is not good either. General practitioners, the American health service CDC, and sports doctors have clear rules for this, and they apply in every pool, in every country.

The short answer upfront: a cold without fever is usually not a reason to stay home. With fever, diarrhea, or vomiting, your child stays home. Why this is so, and when it is more nuanced, is explained below.

Why This Question Concerns Every Parent

Colds occur worldwide, all year round. It is not a question of if a child will catch one, but when.

Children can have up to ten colds per year

According to Thuisarts, the site of the Dutch General Practitioners Association NHG, children can have up to ten colds per year, each caused by a different virus. The American health service CDC sees the same pattern: adults have on average two to three colds per year, children significantly more. During the years a child takes swimming lessons, a runny nose is just part of it.

A virus, not a bacterium: why that matters

A cold is an infection of the mucous membranes in the nose and throat, caused by a virus. Antibiotics do not work against it and are not needed, writes Thuisarts; the body clears it up itself. Symptoms can last a few weeks, even if the mucus turns yellow or green. The key question for swimming lessons is therefore not how to cure the cold, but whether your child feels well enough to swim.

With Fever, Your Child Stays Home

The most important boundary is fever. Everything that follows builds on this one rule.

Fever starts at 38 degrees Celsius

Thuisarts defines fever in children as a temperature of 38 degrees Celsius or higher, best measured rectally. An ear thermometer is less reliable. Fever is a normal reaction of the body to a virus or bacterium, not a disease itself. Still, for swimming lessons it is a signal that your child is fighting hard and needs rest. Often fever resolves on its own within a week.

When to call the doctor immediately

Fever is usually harmless, but not always. Call the doctor or out-of-hours service immediately if your baby is younger than three months and has a fever, or if your child is drowsy, breathes with difficulty or wheezing, drinks much less than usual, or becomes increasingly ill. Also, if fever lasts longer than five days, or returns after a few days of improvement, a call is wise. These rules are on Thuisarts and also apply around swimming lessons: a child this ill does not go in the water under any circumstances.

The sports doctors’ rule: fever days are rest days

Swimming lessons are sport, and the KNZB refers athletes with flu symptoms to the ten points of attention from the Association for Sports Medicine. The first is short and clear: with fever, any form of sport is discouraged. The second concerns recovery: if the fever lasted three days, wait another three days before your child resumes gentle sport. The number of fever days equals the number of rest days. Many swim schools have their own rule, for example that a child must be fever-free for at least one day. Feel free to ask your school’s rule.

Red flags even without fever

Muscle pain, an increased resting heart rate, or symptoms below the neck, such as a heavy cough with mucus: then it is better to skip sport. Vomiting or diarrhea leads to an absolute sports ban from sports doctors. The CDC says the same for the pool: with diarrhea stay out of the water, because one child can contaminate the pool water for the whole group. You also skip swimming lessons then, as unfortunate as it is.

How to Make the Decision in Four Steps

Every cold is different. These four checks help you decide in a few minutes.

Step 1: measure the fever properly

Unsure if your child has a fever? Measure the temperature at a calm moment. Above 38 degrees Celsius the answer is simple: stay home. In the evening body temperature is naturally a bit higher than in the morning, so one measurement at a random time does not tell the whole story.

Step 2: look at the whole child

How high the fever is says little about how sick a child is, warns Thuisarts. Therefore, pay attention to the child itself. Does the child play between sneezing fits, eat, and respond cheerfully? Then a gentle swimming lesson is usually fine. Is the child listless on the couch, refuses to eat or drink, and cries easily? Then it belongs at home, even if the thermometer shows only a slight elevation.

Step 3: check the ears

Ear pain is the trickiest part of the cold question. Thuisarts explains that ear pain in children almost always means a middle ear infection, which usually starts with a cold. Viruses travel from the nose and throat to the middle ear via the Eustachian tube. Does your child have ear pain? Consult the doctor and skip the lesson. With a discharging ear, fluid running from the ear, a child may not swim: submerging the head can suddenly cause dizziness. Only after the doctor has checked that the eardrum is closed again may your child go back in the water.

Step 4: know your swim school’s rules

Every swim school has its own agreements about illness, cancellations, and make-up lessons. Some schools want a child to be fever-free for several days after illness, others only ask for timely cancellation. Look up the rules or ask beforehand to avoid surprises at the poolside.

What About the Stories on Ears and Water?

Persistent stories circulate about swimming with a cold. Two you can disregard, one you must take seriously.

Swimming does not cause middle ear infections

This is the most persistent misconception. A middle ear infection is behind the eardrum, and no pool water reaches there as long as the eardrum is intact. The infection arises because cold viruses reach the middle ear from the nose and throat via the Eustachian tube, not because water enters the ear. A child with an intact eardrum cannot get a middle ear infection from swimming.

Swimmer’s ear is a different story

The infection that is related to water is in the ear canal, in front of the eardrum. Swimmer’s ear develops because the skin in the ear canal stays wet for a long time. Children who swim a lot get it more often, especially in summer. How to recognize and prevent this form is explained in our overview about swimmer’s ear in children.

Glue ear: swimming is allowed

One more reassurance: a child with glue ear, fluid behind the eardrum without infection, may swim normally, states Thuisarts. Flying is also no problem. Only with a discharging ear or a hole in the eardrum do other rules apply.

What a Missed Lesson Does to Progress

If your child stays home once, it is not a drama, not even for swimming lessons.

A week of rest is not a setback

A cold usually lasts a few days, sometimes longer. Children simply pick up where they left off after a few missed lessons, especially if they had steady progress in previous weeks. More important than that one lesson is that your child fully recovers, because going to lessons half-recovered only prolongs the misery.

Cancel on time and schedule a make-up lesson

If your child stays home, cancel well before the lesson time so the swim school can adjust the group and pool in time and the instructor knows why a spot is empty. Many schools offer a make-up lesson with timely cancellation. Check the conditions, note when your child can return, and immediately schedule the first lesson after the cold.

How to keep track of progress

With the free Swimmigo app for parents you see after every lesson which skills your child practiced, even if you were not there. After a week of illness you see exactly where your child left off and what the next lesson will cover. Swimming instructors use Swimmigo for instructors to track per student where the lesson stopped, so a substitute also knows where to continue. Swimmigo is free, available in five languages, and used worldwide. More background on health and swimming lessons can be found in the complete overview of swimming and health for children.

What a Swim School Can Do

For instructors and swim schools it starts with clear policy, because rules only work if parents know them.

Put the illness policy in writing

Set down when a child stays home, for example with fever, and when it can come, for example with a runny nose without fever. Put the rules on the website or in communication to parents, so everyone knows what to expect and no discussion arises at the poolside.

When do you send a child home?

A child who shows up with fever, shortness of breath, vomiting, or diarrhea should not go in the water. Consult with the parent, refer to the doctor’s rules, and offer a make-up lesson. A child who is just a bit sniffly, has no fever, and participates well can attend the lesson.

How to keep viruses out of the group

Cold viruses spread through droplets in the air and via hands, especially where people are close together. Coughing and sneezing into the elbow, washing hands, and showering well before the lesson make a difference. If instructors set a good example, children will naturally follow.

Sources

• Thuisarts (NHG): My child has a cold, last updated February 20, 2026
• Thuisarts (NHG): My child has a fever, last updated March 11, 2026
• Thuisarts (NHG): My child has ear pain, last updated October 23, 2025
• Thuisarts (NHG): My child has a discharging ear, consulted September 2026
• Thuisarts (NHG): My child has glue ear, consulted September 2026
• CDC: About Common Cold, updated February 19, 2026
• CDC: Preventing Swimming-related Illnesses, consulted September 2026
• KNZB: Medical matters, sports and flu (Association for Sports Medicine), consulted September 2026