Breast Test: How Well Do You Know Your Boobs?

Test your boob smarts with this breast quiz.


Your breasts get larger when you’re aroused.

Please Select an Answer.

Your breasts can get turned on too.

When you’re in the mood, your body goes through a process called vasocongestion, which is when blood flow to all your lady parts. As blood rushes through in a fit of sexual excitement, your tissues become engorged. This can cause your breasts to swell as much as 25 percent.


Wearing certain kinds of bras can increase your breast cancer risk.

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Dressed to kill? Not so much.

Internet rumors have suggested that too-tight bras cause breast cancer by obstructing lymph flow. While genetics, obesity, and certain lifestyle habits, like excessive alcohol consumption or lack of exercise, can affect your risk of breast cancer, according to the American Cancer Society, your choice of bra is thankfully NOT one of them. There’s never been sufficient evidence for the claim. For example, a 2014 study of more than 1,500 women found no association between wearing a bra and breast cancer risk.


Having two different sized breasts is normal.

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The twins aren’t identical.

It’s totally normal for breasts to look slightly different from each other—it’s called asymmetry. Breast asymmetry is defined as a difference in form, position, or volume of the breast, and it affects more than half of all women. In fact, your entire body is asymmetrical; one side of your body is completely different from the other (although it’s not usually obvious to the human eye). During your menstrual cycle, your breast tissue and size can change too. They may feel fuller and more sensitive when you’re ovulating, and get bigger from water retention and blood flow.

Generally, slight differences in a woman’s breast are not a concern. Some key differences, though, could signal a problem. If differences are greater than a cup size, it may cause psychological distress. Occasionally, an underlying condition, like fibroids or scoliosis, may cause asymmetrical breasts. Some differences—like nipple retraction, or breast swelling or dimpling—may be a sign of breast cancer, particularly if they appear out of the blue.


Breastfeeding causes breasts to sag.

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Good news, breastfeeding moms!

It’s a myth that breastfeeding your little one will lead to breast sagging (ptosis). However, significant (>50 lbs) weight loss, high body mass index, large bra cup size, number of pregnancies, and smoking history have been found to play a role in how much your breasts sag.

Breast sagging happens when the ligaments that support your breasts stretch and become less elastic over time. This can happen when your breasts change in size (like during pregnancy, or significant weight gain or loss), naturally as you age (usually caused by decreased estrogen production that occurs during menopause) or because of certain factors, like smoking, that can speed up the breakdown of that supportive connective tissue.


It’s harder to detect breast cancer if you have implants.

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Breast implants can hide breast tissue.

If you have silicone or saline implants, make sure to tell your doctor before your next mammogram. The X-rays used for mammograms can’t see through certain implants clearly, which makes it hard for doctors to see the breast tissue—and any abnormalities, like cancer—under them.

To make sure you get an accurate screening your doctor may refer you to a facility that specializes in mammography for women with implants. The technologist performing your mammogram will likely take extra photos of the breast, which is called implant displacement (ID), where the implant is pushed back against the chest wall and the breast is pulled forward over it.


Finding a lump in your breast means you have cancer.

Please Select an Answer.

Most lumps are NOT cancer.

Finding a lump in your breast can be alarming. The good news is that breast lumps are totally normal and common, and most are not breast cancer. Benign (non-cancerous) lumps in women are often caused by fibrocystic changes, fibroadenomas, and cysts. Often times breast lumps appear with hormone changes, like right before a menstrual period, then go away afterward.

That said, it’s important to know your body (and your lumps) so you’re able to detect if something isn't normal. If your lump or breast has any of these characteristics, call your doc ASAP: 

  • If your lump feels harder or different from the rest of your breast.  
  • The skin on your breast appears dimpled or wrinkled (like the peel of an orange).
  • You have bruising on your breast, but did not experience any injury.
  • If you have bloody or pinkish (blood-tinged) nipple discharge.
  • Your nipple is inverted (turned inward), but normally isn’t.


Your breasts only secrete milk during pregnancy or breastfeeding.

Please Select an Answer.

Your breasts can produce secretions at any time.

When you have a bun in the oven or are nursing, it’s normal to produce a watery, milky substance, due to the elevated level of prolactin (the milk production hormone) that occurs during pregnancy and breastfeeding.

Nipple secretions can happen if you’re without child, too. It’s called galactorrhea, when one or both breasts make milk or a milky discharge, which is unrelated to the milk production that happens in breastfeeding. In most cases galactorrhea is harmless and will get better on its own. If it doesn’t, your doctor may give you medication to reduce your body’s production of prolactin. You’re more likely to have galactorrhea if you’ve been pregnant at least once, or if you have an infection, inflammation, or are using certain medicines or taking certain herbs. However, if your nipple discharge is bloody or comes out on its own without you touching or squeezing, see a doc ASAP. It could be a symptom of breast cancer or a pituitary tumor.


It’s possible to achieve orgasm from nipple stimulation.

Please Select an Answer.

How’s that for a happy ending?

In a 2011 study, Rutgers researchers found that nipple play activated the same region of the brain as clitorial, vagial, or cervical stimulation did, and was just as capable of getting a woman off. In another study, women and men reported that breast stimulation was not only sexually arousing, but also enhances arousal when they’re already turned on.

Quiz Results

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Reviewed by: Preeti Parikh, MD, . Review date: March 9, 2018
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