The estrogen and progesterone in birth control pills can also lead to breast tissue growth, in which case the change in breast size tends to be more constant. In either case, breast fullness may also be accompanied by breast tenderness mastalgia or tingling.
When a woman chooses to stop taking the pill, these effects generally disappear. If you are interested in going on the birth control pill, make sure to consult with your health care provider, and let her or him know about your needs and concerns regarding the pill or other birth control methods.
Another consideration to discuss with your health care provider is dosage of hormones in the pill you take; generally the higher the dosage of hormones, the more likely it is you will notice an increase in breast size. To avoid this and other possible side effects including weight changes, spotting, headaches, mood changes, and nausea, health care providers try to prescribe the lowest dosage pill that will be reliable in preventing pregnancy.
However, after a few cycles, these changes might dissipate. If not, you will likely see any increases in breast size due to fat cell growth or fluid retention wear off if you decide to stop using your hormonal birth control. Because high doses of hormones generally increase the likelihood that your breasts will grow, a progestin-only pill or a combination birth control pill with no more than 20 micrograms mcg of estrogen might better fit your needs.
A number of other factors could potentially cause your breasts to increase in size, including:. If you have any issues with changes to your breasts while on birth control, talk to your medical provider.
Any type of hormonal birth control can potentially cause your breasts to increase in size, including: Pills. Intrauterine devices IUDs. These include: Copper IUDs. Male condoms. Female condoms. They found that not only did pill users have significantly larger breasts overall, but they were especially large at certain times of the month.
Women who had previously been on the pill had an average-sized bust. Exactly how this happens remains a mystery. For example, the burst of growth that happens each month, and is necessary to maintain a constant size, could be lasting a bit longer. This would lead to more tissue overall — and explain the heightened cancer risk. As one Reddit user put it , no birth control at all is likely to lead to 25 to 35 pounds kg of weight gain over the course of nine months.
This story is part of the Health Gap , a special series about how men and women experience the medical system — and their own health — in starkly different ways. Do you have an experience to share? Or are you just interested in sharing information about women's health and wellbeing? The Health Gap Health.
How the pill changes your body shape. Share using Email. After a few months of using the pills, your uterine lining may be so thin that a fertilized egg would have difficulty attaching to it. A thinner uterine lining may also affect the bleeding you experience during menstruation. Without a thick uterine lining to shed, your periods may be lighter.
Eventually, you may not experience any bleeding at all. Birth control pills are more than 99 percent effective at preventing unplanned pregnancy if taken properly. There are some types of birth control that have similar results. These include the ring, the patch, and the shot. Birth control pills contain hormones. These hormones — estrogen and progestin — are synthetic forms of hormones that naturally occur in your body.
When you begin taking birth control, your levels of these hormones will increase. This shift in hormones can cause side effects. Most of these side effects will ease after a few weeks or months of using the pills. The hormones in birth control pills may cause changes in your breasts. Only surgery can permanently change breast size, but some women experience changes in breast size when they first begin using birth control pills.
In most cases, any change in breast size is the result of fluid retention or temporary weight gain caused by the increase in hormones. Some women may experience a change in breast size while taking the active pills in their pill pack.
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