5 Common Side Effects of Chlorinated Pools

There is a lot to love about a chlorinated pool. It is cool on a hot day, easier on the joints than pounding pavement, and one of the few places where adults can pretend they are training for the Olympics while mostly just floating. But chlorinated pools can also come with a few annoying side effects that show up long before you perfect your backstroke.

The funny thing is that many people blame “too much chlorine” for every red eye and itchy elbow. In reality, the bigger troublemakers are often chloramines, which form when chlorine mixes with sweat, body oils, dirt, and other things swimmers bring into the water. In other words, the sharp “pool smell” is not always a sign of sparkling cleanliness. Sometimes it is a chemical warning label wearing flip-flops.

If you swim regularly, take your kids to lessons, or spend summer weekends parked beside the deep end, it helps to know what chlorinated pool side effects are common, what they feel like, and when they cross the line from mildly annoying to worth checking with a doctor. Below are the five most common side effects of chlorinated pools, why they happen, and what you can do about them without breaking up with swimming forever.

Why Chlorinated Pools Can Bother Your Body

Chlorine is used because it kills germs and helps prevent outbreaks linked to recreational water. That is the good news. The less glamorous news is that pool chemicals can also strip away natural oils, disrupt moisture barriers, and irritate delicate tissues such as the eyes, nose, throat, and skin.

Indoor pools can be especially tough on some people because chloramines may build up in the air just above the water if ventilation is poor. That means you do not always need to be swimming laps to feel the effects. Sitting poolside and breathing deeply while cheering on a swim lesson can be enough for sensitive people to notice irritation.

Not everyone reacts the same way. Competitive swimmers, lifeguards, kids with eczema, people with asthma, and anyone with sensitive skin or eyes tend to notice symptoms more quickly. Frequency matters too. A once-a-month cannonball artist may be perfectly fine, while a daily lap swimmer may feel like their skin and hair are filing formal complaints.

1. Red, Burning, or Itchy Eyes

One of the most common side effects of chlorinated pools is eye irritation. If your eyes sting after swimming, look pinker than usual, or feel dry and gritty, you are not imagining it. Pool chemicals and chloramines can interfere with the tear film that normally keeps your eyes comfortable and lubricated.

What it feels like

Swimmers often describe this as burning, stinging, redness, itchiness, watery eyes, or temporary blurry vision. In mild cases, symptoms fade within a few hours. In more irritating pool conditions, the discomfort may linger longer.

Why it happens

Contrary to popular pool folklore, red eyes are not simply proof that a pool is “extra chlorinated.” Eye irritation often points to chloramines and unbalanced pool chemistry rather than clean water alone. Contact lenses can make the problem worse by trapping irritants against the surface of the eye.

How to lower the risk

Well-fitted swim goggles are your best friend here. Rinse your eyes with clean water after swimming, avoid opening your eyes underwater like you are auditioning for a marine documentary, and skip wearing contact lenses in the pool unless an eye doctor has told you otherwise.

2. Dry Skin and That Tight, “Squeaky” Feeling

Ever step out of the pool feeling weirdly polished, as if your skin has been gently sanded by chemistry? That tight, dry sensation is another common side effect of chlorinated pools. Chlorine and related pool chemicals can strip away the natural oils that help your skin hold moisture.

What it feels like

Your skin may feel tight, rough, flaky, or itchy after a swim. Hands, legs, and areas that are already dry usually notice it first. Some people also find that daily swimming makes their skin feel more sensitive overall, especially in hot weather or after sun exposure.

Why it happens

Skin works best when its barrier stays intact. Pool chemicals can weaken that barrier, allowing moisture to escape more easily. That does not mean every swim will leave you feeling like a piece of toast, but frequent exposure can add up.

How to lower the risk

Shower before and after swimming, then apply a thick, fragrance-free moisturizer while your skin is still slightly damp. This is not glamorous, but neither is scratching your shins through dinner. Gentle cleansers also help. Harsh scrubs and over-exfoliating after a swim can make irritation worse.

3. Chlorine Rash, Itching, and Eczema Flare-Ups

Another side effect of chlorinated pools is a rash that shows up after swimming. People often call this a “chlorine allergy,” but that label is usually not quite right. In many cases, it is actually irritant dermatitis, meaning the skin is reacting to a harsh substance rather than mounting a classic allergy response.

What it looks like

A chlorine rash may appear as red, itchy, mildly inflamed skin. It can show up in broad patches rather than tiny, isolated spots. For some people, it feels more annoying than dramatic. For others, especially those with sensitive skin, it can be impressively irritating for something caused by a leisure activity.

Who gets it most often

People with eczema, chronic dry skin, psoriasis, or a weakened skin barrier are more likely to flare after time in a chlorinated pool. Even then, reactions vary. Some people with eczema find swimming soothing under certain conditions, while others notice clear flare-ups if the water or pool environment is irritating.

How to lower the risk

Apply moisturizer or a protective ointment before swimming if you are prone to dryness or eczema. After you get out, rinse thoroughly, pat dry gently, and moisturize again within a few minutes. If a rash becomes intense, painful, or lasts more than a couple of days, it is smart to check in with a healthcare professional to rule out other causes.

4. Coughing, Wheezing, or an Irritated Nose and Throat

This is the side effect people forget about until they walk into an indoor pool and immediately think, “Why does the air feel spicy?” Chloramines can irritate the respiratory tract, especially in enclosed pool areas with poor ventilation.

What it feels like

You might notice a scratchy throat, runny or irritated nose, coughing, chest tightness, wheezing, or a burning feeling when breathing deeply. For people with asthma, heavily chlorinated or poorly ventilated pools may trigger symptoms more easily.

Why it happens

When chloramines rise from the water into the air, they can settle near the surface and become easy to breathe in. That is one reason indoor pools sometimes feel more irritating than outdoor ones. The issue is not just the water touching your skin. It is also what is hanging in the air while you swim, coach, lifeguard, or spectate.

How to lower the risk

If a pool has a very strong chemical smell, poor air movement, or leaves you coughing every time you visit, consider that a clue rather than a personality trait of the building. Well-maintained, well-ventilated facilities are less likely to cause trouble. People with asthma should keep rescue medication available and pay attention to how different pool environments affect them.

5. Dry, Brittle Hair and an Unhappy Scalp

Chlorinated pool side effects do not stop at skin and eyes. Hair takes a hit too. Repeated exposure can dry out the hair shaft, increase brittleness, and make strands more prone to tangling and split ends. Color-treated hair often complains the loudest.

What it feels like

Hair may feel rough, straw-like, tangled, or extra dry after repeated swims. Scalp dryness or irritation can also show up in some swimmers, especially if they are in the pool often.

Why it happens

Pool chemicals can strip away protective oils and affect the outer layer of the hair. If hair is already damaged, bleached, or porous, the effects may be more noticeable. The classic greenish tint some blond swimmers notice is usually linked more to metals such as copper in pool water than chlorine alone, but chlorine still contributes to dryness and damage.

How to lower the risk

Wet your hair with fresh water before swimming so it absorbs less pool water, wear a swim cap when possible, and wash your hair soon after your swim. A good conditioner or leave-in product can help keep your hair from turning into a hay-themed science project.

How to Enjoy the Pool Without Letting It Fight Back

The goal is not to frighten people away from swimming. Swimming is excellent exercise, great for joints, and often easier to stick with than workouts that involve suffering on land. The trick is reducing exposure to the parts of pool chemistry that irritate your body.

• Shower before swimming to reduce the sweat, oils, and dirt that contribute to chloramine formation.
• Shower after swimming to rinse away chlorine and chloramines from your skin and hair.
• Use goggles to protect your eyes.
• Moisturize after swimming, especially if you have dry skin or eczema.
• Choose well-maintained pools with good ventilation, especially indoors.
• Avoid swallowing pool water and do not wear contact lenses underwater.
• Pay attention to symptoms that repeatedly show up after swimming in one particular pool.

And yes, one more public service announcement: peeing in the pool does not create comedic rebellion energy. It helps create the very compounds that make pools more irritating. Your future eyes, lungs, and fellow swimmers would all appreciate better choices.

When Side Effects Should Not Be Ignored

Most chlorinated pool side effects are mild and temporary. Still, there are times when it is worth getting medical advice. Seek help if you have severe breathing trouble, intense eye pain, worsening rash, swelling, signs of infection, or symptoms that last well beyond a day or two after swimming.

It is also smart to talk with a doctor if you have asthma, chronic eczema, or repeated skin reactions that interfere with regular swimming. Often, the answer is not “stop swimming forever.” It may simply be a matter of better pool conditions, stronger skin protection, or a treatment plan that works with your routine.

Conclusion

The five most common side effects of chlorinated pools are irritated eyes, dry skin, chlorine rash or eczema flare-ups, respiratory irritation, and dry or brittle hair. None of these are especially rare, and none of them mean swimming is automatically bad for you. Most are manageable with better pool hygiene, better facility maintenance, and a few post-swim habits that take less time than scrolling for “why do my eyes burn after the pool?”

So go ahead and enjoy the water. Just bring goggles, moisturizer, and a healthy respect for pool chemistry. The pool should leave you refreshed, not feeling like you got into a minor argument with a bottle of bleach.

Experiences Swimmers Commonly Have with Chlorinated Pools

For many people, the side effects of chlorinated pools do not show up all at once. They appear in small, familiar moments. A parent takes a child to swim lessons three evenings a week and notices that the child rubs their eyes the whole ride home. The next week, the parent finally connects the dots when the goggles stay on properly and the redness is much less dramatic. It is a simple example, but it captures how often pool irritation sneaks in disguised as “just one of those things.”

Lap swimmers often describe a different pattern. They love the workout, feel great cardiovascular benefits, and genuinely enjoy the routine. But after several weeks of regular sessions, their skin begins to feel persistently dry, especially on the legs, arms, and around the swimsuit line. Some say their skin feels fine in the water but tight and itchy later that evening. Once they start showering immediately after their swim and applying moisturizer right away, the difference can be surprisingly noticeable.

People with eczema tend to have even more mixed experiences. One swimmer may say a chlorinated pool feels oddly soothing at first, almost like a diluted bleach bath, but that the relief disappears if they stay in too long or skip rinsing off afterward. Another may find that one particular pool is tolerable while another causes a flare every single time. This inconsistency is frustrating, but it makes sense. Pool maintenance, water balance, time spent in the water, and the condition of the skin barrier all play a role.

Indoor pool users frequently talk about the air before they mention the water. They walk in and immediately notice a strong chemical smell, then feel a scratchy throat before they even touch the lane line. Swimmers with asthma or sensitive airways may describe coughing during hard sets, a tight chest later in the day, or the need to use an inhaler more often after practice in one facility than another. In many cases, the pool itself is not the problem so much as what is hovering above it in poorly ventilated air.

Hair complaints are equally common, especially among frequent swimmers. People with color-treated, curly, or naturally dry hair often notice that their hair becomes rougher, more tangled, and less cooperative after repeated exposure. Some describe that “pool hair” feeling as if each strand has become a tiny broom bristle with opinions. Once they begin soaking their hair with clean water before swimming, wearing a cap, and conditioning afterward, the damage usually becomes more manageable.

What stands out across these experiences is that most swimmers do not need to stop swimming. They usually need better habits, better protection, or a better-maintained pool. Chlorinated pools are not automatically villains. But they do ask for a little strategy. The swimmers who feel best tend to be the ones who treat their post-swim routine as part of the workout, not an optional epilogue.