Kids With Body Odor: What Parents Can Do

(We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission.)

Has your child ever come home from school with a strong smell, especially from under the arms? Maybe even their clothes still smell after washing? You might worry, “Is this body odor? They’re just a kid!” Don’t worry — it’s more common than you think. Many kids get body odor (also called armpit odor or "childhood B.O.") earlier than parents expect. In this article, we’ll break it down for you in simple words: why it happens, what to do, and when to see a doctor.

What Is Body Odor (a.k.a. Armpit Smell or Fox Odor)?

Body odor, or armpit smell, comes from sweat mixing with bacteria on the skin — especially in the armpits. It's not the same as just smelling sweaty. This odor is stronger, and sometimes smells like cheese or onions.

This happens because of special sweat glands under the arms (called apocrine glands). These glands don’t do much when a child is little, but they start to become active as kids grow up — especially around puberty. For some kids, this starts early.

Also, if one or both parents had body odor when they were young, there’s a good chance their child might have it too. Yes, it can be passed down in the family.

Why Does My Kid Smell Already? Aren’t They Too Young?

Usually, body odor shows up when a child starts puberty, often between ages 8 to 13. But some kids start showing signs earlier, especially if:

• Body odor runs in the family (genetics)
• They are entering puberty earlier than normal
• They sweat a lot or stay in sweaty clothes
• They don’t wash properly or often enough

Even very active kids who play hard and don’t change their sweaty shirts may start to smell.

What Can Parents Do?

First, don’t panic. Body odor is not a disease. It doesn’t mean your child is dirty. And it’s not their fault. Here are some easy things that help:

1. Teach Good Hygiene Habits

• Make sure your child bathes every day, especially after sports or in summer
• Show them how to clean under their arms well with soap and water
• Help them remember to wear clean clothes every day

2. Choose Breathable Clothes

• Go for cotton shirts that soak up sweat and let the skin breathe
• Avoid tight or synthetic clothes (like polyester) that trap sweat

3. Try a Gentle Deodorant

• There are many safe, natural deodorants made just for kids
• Look for ones without strong chemicals, alcohol, or aluminum
• Don’t use adult deodorants unless a doctor says it’s OK

4. Eat Smart

• Some foods (like spicy snacks, junk food, sugary drinks) can make body odor worse
• Help your child eat more fruits, veggies, whole grains, and drink water
• Try to cut down on fried foods and soda

When to See a Doctor

Most of the time, body odor is normal and nothing to worry about. But sometimes it’s good to check with your doctor, especially if:

• The odor is very strong or smells “rotten”
• The child is under 7 and already showing signs of puberty
• The skin under the arms looks red, sore, or itchy
• Your child feels embarrassed, anxious, or avoids friends because of the smell

Doctors may suggest checking hormone levels, offer advice on skin care, or even test for early puberty. But most kids don’t need any medical treatment.

Supporting Your Child

Body odor can be upsetting for some kids. They might feel different or even get teased at school. That’s why emotional support is just as important as physical care.

• Never shame or scold them for smelling
• Instead, say something like, “It’s totally normal, and lots of kids go through this.”
• Help them build a simple hygiene routine
• Remind them that confidence comes from how they treat others — not how they smell
• If needed, talk to teachers so they understand and can support your child quietly

FAQ Section

Q: Is body odor in kids normal?
A: Yes! Many kids start to have body odor around 8–10 years old. It’s often one of the first signs of puberty.

Q: Can children use deodorant?
A: Yes, if needed. Choose a gentle, kid-safe deodorant made without harsh chemicals.

Q: What age should I worry about body odor?
A: If your child is under 7 and already has strong body odor, it’s a good idea to check with your doctor.

Q: Is body odor a sign of bad hygiene?
A: Not always. Even clean kids can smell if they sweat a lot or are starting puberty.

Q: Will it go away?
A: For many kids, the smell will improve with better hygiene. But during puberty, it may stay and need regular care.