Do Birth Control Pills Cause Breast Cancer? The Latest Study

Last month, you might have seen headlines warning you that hormonal birth control increases risk for breast cancer. This news came from a study that examined the medical records of nearly 1.8 million Danish women — and the huge sample size lent heft to the findings, several of which stood in stark contradiction to commonly held beliefs about modern hormonal contraception.


Some types of hormonal contraception could increase breast cancer risk, while others may not. But the Pill also reduces risk for endometrial and ovarian cancers.


Birth control comes in two “flavors” — hormonal and nonhormonal. Hormonal contraception is among the most effective, and includes birth control pills, hormonal IUDs, the shot, the vaginal ring, the implant, and the patch. Nonhormonal contraception ranges from very effective, including surgical sterilization and the copper IUD, to the not-quite-as-effective, including condoms, diaphragms, and withdrawal. (With the exception of condoms, birth control does not provide protection against STDs.)

Hormonal contraception is one of the greatest achievements in the history of medicine, and offers those wishing to control their fertility an array of effective options. However, as with all effective medications, there is potential for side effects. And, because many forms of hormonal birth control contain types of estrogen, and exposure to estrogen is a risk factor for breast cancer, many people wonder if hormonal birth control might increase users’ chances of developing breast cancer later in life.

Most birth control pills contain a combination of two hormones: estrogen and progestin (synthetic progesterone). Other hormonal methods, such as the ring and the patch, also use combinations of these two hormones.

There are also pills that don’t contain estrogen, called POPs, or progestin-only pills — aka the “minipill.” Additionally, hormonal IUDs, the implant, and the shot are progestin-only methods.

What Previous Studies Have Shown

The connection between hormonal contraception and breast cancer is murky, because the association is difficult to study properly. There are so many different types of hormonal contraceptives, each with different dosages, different chemical formulations, and different ways of entering the body. We can’t tease these differences apart on the one hand, but make blanket statements about hormonal contraception as a whole on the other hand. But we can look at the available evidence and see where it points. Continue reading

Let’s Talk Contraception: New Contraceptives and HIV Protection

This ring, currently under development, can be inserted into the vagina to prevent both pregnancy and HIV transmission. Image: USAID

This ring, currently under development, might reduce risk for both pregnancy and HIV transmission. Image: USAID

The World Health Organization estimated that in 2012 there were 35.3 million people worldwide living with HIV. A whopping 69 percent of them live in sub-Saharan Africa. Save the Children reports that 2 out of 5 children born in developing countries are the result of unintended pregnancies.

Condoms remain the gold standard for protection against HIV transmission. But not all women are able to negotiate condom use. The same can be said for contraceptives. Health-care providers in some areas of the world are not even able to provide condoms consistently due to political or financial pressures.


An intravaginal ring under development might protect against pregnancy, HIV, and genital herpes.


But there are nonprofit groups researching and developing products to meet the needs of women in these countries. With the financial backing of the U.S. Agency for International Development (USAID), CONRAD, a nonprofit committed to improving reproductive health globally, is testing a new intravaginal ring that combines a hormonal contraceptive, levonorgestrel, and an HIV microbicide, tenofovir, in the same product. When inserted vaginally, it slowly dispenses both drugs to prevent pregnancy and HIV transmission. Continue reading

Over 90 Percent of What Planned Parenthood Does, Part 21: Contraception

World Contraception DayWelcome to the latest installment of “Over 90 Percent of What Planned Parenthood Does,” a series on Planned Parenthood Advocates of Arizona’s blog that highlights Planned Parenthood’s diverse array of services — the ones Jon Kyl never knew about.

Birth control is about so much more than just one type of pill. First of all, there are dozens of varieties of the Pill, and beyond that even more types of contraception! With so many options available, you’re bound to find the birth control option that’s right for you, and Planned Parenthood can help you find it.

Birth Control Pills: The Pill is probably the first thing people think of when they think of birth control, and it’s no wonder: Since its introduction in 1960, it has become an iconic symbol of women’s liberation. Taken at the same time every day, the Pill is an incredibly effective form of birth control that works by suppressing ovulation. And there are many different types, from those that are specially designed to reduce the number of periods you have in a year, to progestin-only mini-pills, from name brand pills to generic pills, and more!

Vaginal Ring: Not everyone likes taking a daily pill; some people are naturally forgetful, while others have hectic schedules that don’t make it easy to dedicate a time of the day to pill-taking. That’s where contraceptives like NuvaRing come in: This flexible ring is inserted into the vagina, where it releases a low dose of daily hormones. Leave it in for three weeks, remove it for a week, and then start the cycle anew with a new ring!

Birth Control Patch: Ring not your thing? Maybe a patch is where it’s at. It works a lot like the ring, only instead of inserting it into your vagina, you pop the patch out of its wrapper and stick it to your skin, where it stays in place for a full week, releasing hormones all the while. Continue reading

Eight Great Heat-Friendly Contraceptives

heat friendlyI don’t know if any of my fellow Arizonans have noticed, but it’s hot. It’s been hot. And all sources tell me that it’s likely to remain hot for a couple of months yet.

There are, of course, things we can do to make the heat more manageable for ourselves, such as drinking plenty of water and relegating intense outdoor activity to the early morning or late evening hours. There are also things we can do to help our contraceptives beat the heat if necessary, such as storing condoms or birth control pills away from extreme heat.

Still, some types of contraception require more intervention during the summer than do others. So — our top eight types of heat-friendly birth control!

Quick disclaimer: I made this list based on the single criterion that these methods are unlikely to be affected by the heat of an Arizona summer. When selecting a contraceptive method, there are loads of other factors to consider. So the methods on this list are not necessarily the most effective or appropriate methods for every person needing birth control.

8 Birth Control Vaginal Ring (NuvaRing)

  • Why It’s Heat Friendly: In terms of storage, it’s technically not; NuvaRing comes with the same temperature recommendations as oral contraceptive pills. However, since the ring is only inserted once per month, folks getting their rings one at a time don’t have to worry about longer-term storage.
  • Cons: In addition to the same risks and side effects of estrogen-containing contraceptives, NuvaRing isn’t the heat-friendliest choice for users getting more than one month at a time. Continue reading

Let’s Talk Contraception: NuvaRing, Another Contraceptive Choice

Would you like an alternative to a daily pill for contraception? NuvaRing is a flexible vaginal ring containing a combination of two hormones used to prevent pregnancy: a progestin and an estrogen. It is placed inside the vagina where it releases a continuous small dose of these hormones, and is left in place for three weeks. Then you remove it and wait one week, during which you usually will have your period. After this ring-free week, you insert a new ring.


The vaginal ring is an excellent alternative for people who don’t want to take a daily pill for contraception.


Used properly, it is nearly as effective as oral birth control pills, is easily reversible and frees you from having to remember to take a pill each day. You can use tampons, vaginal yeast medications, and spermicides when wearing the ring, but you should not use a diaphragm because it may not fit properly. In some vaginal conditions, such as a prolapsed (or falling) uterus, you may not be able to use the ring because it might slip out more easily. The NuvaRing can only work when it’s inserted properly in order to release its hormones. Most women report they cannot feel the ring once it’s inserted.

Most of the side effects of the NuvaRing are similar to birth control pills. Cigarette smoking is definitely not recommended because it may increase your risk for strokes or heart attacks, especially if you are older than 35. There have been several reports that the ring may put you at an increased risk for blood clots, and this is still being studied. If you have concerns about this or have a personal or family history of blood clots, heart attacks, or strokes, it’s important to talk with your health care provider before using the ring. Continue reading

Let’s Talk Contraception: Do Birth Control Pills Cause Blood Clots?

Alarming ads urge you to call a lawyer if you’ve been “injured” taking certain birth control products, such as Yaz, Yasmin, or NuvaRing. These injuries include venous thromboembolisms (VTEs), heart attacks, and strokes. It’s frightening to wonder if you are endangering your health by taking a pill to prevent pregnancy or treat dysmenorrhea (painful cramps).

Should you stop taking your pills? What is a VTE and why should you worry? VTE is a blood clot that usually starts in your leg, but may break loose and travel to your heart or brain and cause a heart attack or stroke. It can be life-threatening, so it is a serious side effect to be concerned about. All birth control pills may increase your risk for a VTE, but it has always been considered so small that most women can safely take the pill. About 3 to 9 women in 10,000 who use birth control pills for more than one year may have a VTE compared to 1 in 5 women out of 10,000 who are not pregnant and not on the pill.


Birth control pills are considered very safe for the majority of women, but all medications carry some risk of adverse effects.


When oral birth control pills were first developed, they contained much higher doses of estrogens and progestins — types of hormones — especially estrogen. It was also noticed that there was a higher risk for developing a blood clot while using birth control pills than in nonpregnant women who didn’t take the pill. It was thought that the high dose of estrogen was responsible for this risk. So, with continuing research and development, eventually the dose of estrogen was decreased to the lower level used today to minimize the chance of a clot. The type of estrogen in pills today is almost exclusively ethinyl estradiol. Continue reading