Skip Nav
Why I Love Valentine's Day
Valentine's Day
My Husband and I Fell in Love With Valentine's Day For the Sweetest Reason
Sleeping With Older Men
NSFW
I Slept With a Man Almost Twice My Age — Here's What It Was Like
Best Erotic Reading Sites
NSFW
6 Online Erotica Sites to Check Out For the Steamiest Reads
Why It's OK to Move on Quickly After a Breakup
Emma Chow
Why It's OK to Move on Quickly
Things To Do To Spice Up a Long-Term Relationship
Dating
50 Ways to Turn Up the Heat in Your Long-Term Relationship

Things You Should Know About Boobs

20 Things You Never Knew About Boobs

Boobs! They are awesome and weird. You probably feel like you know everything about yours since they're, you know, on your body, but you'd be surprised — there are some seriously crazy boob facts. Behold.

  1. A lot goes into the anatomy of a breast. Female breasts are made of fat, nerves, veins, arteries, breast tissue, and connective tissue.
  2. There are eight different kinds of nipples. There's flat, "normal," puffy, inverted, and more.
  3. Six percent of people have an extra nipple. Not that common, but not totally uncommon.
  4. Nipplegasms are a thing. Oxytocin is released when nipples are stimulated, which is what causes vaginal orgasms.
  5. The world's largest bra size is 102ZZZ. As seen on TLC's Strange Sex.
  6. Your left is probably bigger than your right. Even if you can't tell, your left boob is probably slightly bigger than your right, which is the norm for most women. Even Jennifer Lawrence admits her boobs are uneven!
  7. Nipple hair is normal. If you have it, you're not alone, and it's nothing to worry about.
  8. One in eight women will eventually be diagnosed with breast cancer. There are 10 things every woman can do to help prevent it.
  9. Your boobs typically grow for two to four more years after you get your first period. Your mosquito bites really did grow, even when you thought they wouldn't.
  10. The size changes every month. You're not imagining a fuller bra. Your hormones change during your period and ovulation, which can cause bigger (and achey) breasts.
  11. Smoking cigarettes can cause sagging. Yikes! A University of Kentucky study found that "smoking breaks down a protein in the skin called elastin, which gives youthful skin its elastic appearance and supports the breast."
  12. The average bra size in the US is 34DD. Thirty years ago, it was 34B, but it's grown because of "better education on bra fit, breast augmentation, and obesity."
  13. Nipples can get darker during pregnancy. Thanks to, again, hormones.
  14. Almost five percent of American women have fake boobs. Also, the number of implants created since 1997 could fill an Olympic-size swimming pool. Weird visual, right?
  15. Men have nipples because all humans start out as a generic embryo. In the earliest stages of development, embryos follow a "female blueprint."
  16. There's a name for the small bumps on your areola. They're called Montgomery glands, and they produce a "natural oil that cleans, lubricates, and protects the nipple during pregnancy and breastfeeding."
  17. Every nipple has 15 to 20 openings for breast milk to come out of. Whoa. These openings are called lobes, and each lobe has 20 to 40 lobules, which have milk ducts attached to them.
  18. The nipple and areola are heavily pigmented, which is why they are darker than the rest of the breast.
  19. Sleeping face-down can affect the shape over time. Sad but true.
  20. Nothing makes your boobs happier than taking off your bra at the end of a long day. According to a scientific survey of thousands of boobs, this is 100 percent true.
More from POPSUGAR
From Our Partners
Is Peeing While Jumping Rope Normal?
Julianne Hough Endometriosis Pain During Sex
Maria Shriver on Having the Sex Talk With Kids
Why Do I Feel Nauseous After Sex?
Symptoms of Sleep Apnea
2019 Travel Trends
Healthy Habits to Develop In Your 20s
Is It Normal to Gain Weight On Your Period?
What Not to Say to Single Women
Is It OK to Masturbate Every Day?
Can You Have Sex With a UTI?
Anti-Inflammatory Diet Review
From Our Partners
Latest Love
All the Latest From Ryan Reynolds