Early Puberty: Causes, Endocrine Disruptors, and What’s Actually True

The PedsDocTalk Podcast: Child Health, Development & Parenting—From a Pediatrician Mom

Dr. Mona Amin

Medicine, Kids & Family, Health & Fitness, Parenting

4.9 • 1.5K Ratings

🗓️ 23 July 2025

⏱️ 49 minutes

🔗️ Recording | iTunes | RSS

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Summary

Do you know what a bone age is? If you’ve ever found yourself spiraling over early puberty headlines or wondering if plastic cups and lavender lotion are harming your child’s hormones this episode is for you. I’m joined by Dr. Sarah Hart Unger, a pediatric endocrinologist, mom of three, and co-host of the Best of Both Worlds and Best Laid Plans podcasts. Together, we cut through the confusion and misinformation around early puberty, endocrine disruptors, and what’s actually backed by science. We dive into: What early puberty actually looks like including what’s normal vs. concerning, the difference between true puberty and adrenal changes, and when to seek evaluation. Real vs. rumored causes like the roles of body fat, genetics, and endocrine disruptors like BPA and lavender without spiraling into fear or guilt. When medical treatment is needed, when reassurance is enough, and why chasing puberty “delays” can sometimes do more harm than good. To connect with Sarah Hart-Unger check out all her resources at https://linktr.ee/the_shubox And enjoy our previous episode: https://pedsdoctalk.com/podcast/i-wish-my-kid-was-a-little-bit-taller-height-and-kids/ We’d like to know who is listening! Please fill out our Listener Survey to help us improve the show and learn about you! 00:00 – Intro: Why earlier puberty headlines are everywhere 01:45 – Meet Dr. Sarah Hart-Unger: Pediatric endocrinologist and mom 04:30 – What is actually considered early puberty? 06:10 – The rise in early puberty: Is it real or just more noticed? 08:00 – Are endocrine disruptors to blame? 10:45 – The role of stress, trauma, and environment 13:10 – What “normal” puberty looks like across ages and genders 15:40 – Should you be worried about lavender lotion and plastic cups? 18:30 – What parents Google vs. what pediatricians actually test for 21:00 – What’s a bone age scan, and when is it helpful? 23:00 – When to worry: True red flags for early puberty 25:40 – The problem with over-testing and over-fearing 28:10 – Why Dr. Hart-Unger prioritizes calm, not panic 30:00 – Navigating puberty in boys vs. girls 32:45 – Language for talking about puberty without shame 35:00 – Helping your child feel confident in a changing body 37:10 – Final thoughts and what Dr. Hart-Unger wants parents to remember Our podcasts are also now on YouTube. If you prefer a video podcast with closed captioning, check us out there and ⁠subscribe to PedsDocTalk⁠. Get trusted pediatric advice, relatable parenting insights, and evidence-based tips delivered straight to your inbox—join thousands of parents who rely on the PDT newsletter to stay informed, supported, and confident. ⁠⁠⁠⁠Join the newsletter⁠⁠⁠⁠! And don’t forget to follow ⁠⁠⁠⁠@pedsdoctalkpodcast⁠⁠⁠⁠ on Instagram—our new space just for parents looking for real talk and real support. We love the sponsors that make this show possible! You can always find all the special deals and codes for all our current sponsors on the ⁠PedsDocTalk Podcast Sponsorships⁠ page of the website. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Transcript

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0:00.0	In girls, basically, before age eight, you shouldn't really have much in the way of true puberty.
0:07.9	Look for, you know, subtle signs.
0:10.0	In girls, I think it's easier because, like, you know, at some point you might see some
0:14.4	breast tissue.
0:14.9	And if you're worried about it, get it, get it looked at, especially if it's prior to age
0:19.5	eight.
0:20.0	If a kid is of like a bigger build
0:21.9	or carrying a little bit of excess fat tissue, it can actually be very hard to tell what's the
0:25.9	difference between what we call lipomastya, which is just a little extra fatty tissue in that
0:30.0	area versus true puberty, but you can always have it looked at and then the provider can
0:33.6	then look for other signs and see whether if there's a concern or not. In boys, it can be really difficult.
0:40.5	But I would say if you are noticing early acne, significant amount of acne or like body hair
0:47.3	or something like that, it's always a good idea to bring it up because I think it's not
0:51.1	something you're going to want to excavate on your own at home to check out their testicular volume.
0:56.5	But if it were happening early, you would want to know about that.
1:05.0	Hi, it's Dr. Mona, your favorite online pediatrician, I hope, mom friend, and someone who cannot believe we're still blaming occasional aluminum foil use for early puberty. Welcome back to the Pete's Doc Talk
1:16.1	podcast and hey, before we dive in, hit that follow and download button. Yes, it helps this show grow.
1:21.6	But more importantly, it helps you stay informed with content that's based in science, not social
1:26.6	media fear.
1:31.6	So let's talk about what I've been seeing all over TikTok lately, how to delay puberty tips that sound helpful, but don't always hold up. You'll hear things like don't
1:36.7	let your child drink cold water. Say no to nail polish. Never pack food in foil. Wash fruit
1:42.6	with vinegar and baking soda.
	...

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