
Birth control pills are primarily used as a method of preventing unwanted pregnancies. However, they are also prescribed to treat acne, regulate menstruation, and prevent certain types of cancer. While birth control pills offer many benefits, they also carry potential risks and side effects, including weight gain, decreased sex drive, and mental health issues. There is also ongoing research into the effects of birth control on muscle health, with some studies suggesting a link between birth control and muscle damage or recovery, as well as a potential decrease in muscle injuries.
| Characteristics | Values |
|---|---|
| Muscle loss | There is no evidence that birth control causes muscle loss. However, there is some evidence that it can help prevent muscle injuries |
| Weight gain | Birth control may cause temporary weight gain due to water retention, but it does not directly cause muscle loss or fat gain |
| Musculoskeletal system | Hormonal contraceptives can affect the musculoskeletal system, but there is a lack of high-quality studies on the topic |
| Muscle strength | Some studies suggest that birth control pills may affect muscle strength and recovery after exercise |
| Sexual function | Birth control may decrease sexual desire, arousal, and lubrication |
| Cancer risk | Birth control may reduce the risk of certain cancers, such as ovarian cancer, but may also increase the risk of other cancers, such as cervical, liver, and breast cancer |
| Other risks | Birth control may increase the risk of blood clots, particularly for deep vein thrombosis and pulmonary embolism. It may also increase cholesterol levels, which can increase the risk of cardiovascular disease |
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What You'll Learn

Birth control pills may prevent muscle injuries
While birth control pills are primarily used for preventing unwanted pregnancies, they also offer many other benefits. One benefit that has been observed in some studies is that birth control pills may help prevent muscle injuries in women.
A study published in Medicine & Science in Sports & Exercise found that female participants using birth control pills were 85% less likely than male participants to experience muscle sprains or tendon strains, the most common types of musculoskeletal injuries in sports. The study's lead author, Luis Rodriguez, a PhD candidate in the Joint Biomedical Engineering Graduate Program between UT Dallas and UT Southwestern, emphasised the potential of these findings to enhance preventative strategies and clinical interventions for musculotendinous injuries in various female populations.
The protective effect of birth control pills against muscle injuries may be attributed to their hormonal composition. Birth control pills containing a mix of estrogen and progestin may help regulate estrogen levels, preventing spikes that could increase the risk of injuries. Endogenous estrogen has been found to attenuate muscle damage in animals, and while the evidence in humans is less conclusive, it suggests a similar trend.
However, it is important to note that the effect of birth control pills on muscle injuries is still a subject of ongoing research. Some studies have focused on the impact of oral contraceptives on muscle strength and recovery from exercise-induced muscle damage, with varying results. Additionally, the long-term use of birth control hormones may have other side effects, such as an increased risk of certain cancers and a potential impact on body composition and weight gain, specifically an increase in body fat in certain areas.
While birth control pills may offer some protection against muscle injuries, it is always advisable to consult with a healthcare professional to understand the benefits and risks of any contraceptive method and to determine the most suitable option for an individual's specific needs and circumstances.
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Birth control may cause weight gain
While birth control may not directly cause muscle loss, it has been associated with weight gain in some individuals. However, it is important to note that the weight gain is typically due to water retention and not an increase in body fat. This water retention usually occurs during the first few weeks or months of starting birth control and is almost always temporary.
Multiple sources suggest that birth control does not cause significant weight gain. Most studies oppose the theory that hormonal birth control leads to weight gain. Modern birth control pills, for example, do not contain enough hormones to cause substantial weight gain. Additionally, studies have shown that methods such as the pill, the ring, the patch, and the IUD do not lead to weight gain or loss.
However, some individuals may still experience slight weight gain after starting birth control. This weight gain is usually minor, with one literature review finding that participants gained fewer than 4.4 pounds on average after using a progestin-only pill for 6 or 12 months. It is important to note that this weight gain is not universal, and many people use these forms of birth control without gaining weight.
There are two methods of birth control that have been associated with weight gain in some individuals: the birth control shot and the birth control implant. However, not everyone who uses these methods experiences weight gain. Additionally, weight gain may be influenced by other factors such as physical activity levels, dietary habits, and changes in daily routines.
If you are concerned about weight gain while using birth control, it is recommended to consult a healthcare professional, such as a nurse or doctor, to discuss your options and address any concerns or side effects.
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Birth control may negatively impact sex life
While hormonal birth control is very effective at preventing pregnancy, it is associated with a range of physical side effects that can negatively impact a person's sex life. For example, hormonal birth control can cause fatigue, nausea, irregular bleeding, and cramping, all of which can negatively impact sexual desire or libido.
Hormonal birth control can also lead to vaginal dryness, discomfort during penetration, and reduced sensitivity, which can diminish sexual interest or arousal. In addition, some people may experience a decrease in sexual desire and arousal due to the hormonal changes caused by birth control. This can include a decrease in libido, as well as a decrease in sexual lubrication, and an increase in pain during sex.
Research has shown that hormonal birth control users may experience higher levels of anxiety and negative mood changes compared to non-users, which can also impact a person's sex life. Furthermore, the use of hormonal birth control can affect the musculoskeletal system, including muscle strength and regeneration. This could potentially impact a person's sex life if it affects their physical ability or confidence.
It is important to note that everyone responds differently to hormonal birth control, and some people may not experience any negative side effects at all. However, it is always a good idea to do your own research and consult with a healthcare professional to find a birth control method that suits your personal needs and goals.
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Birth control may increase the risk of certain cancers
Birth control pills contain synthetic versions of the female sex hormones estrogen and progesterone. Naturally occurring estrogen and progesterone can stimulate the development and growth of some cancers, such as cancers that express receptors for these hormones, including breast cancer. Therefore, because birth control pills contain synthetic hormones, they could potentially increase the risk of certain cancers.
Indeed, research has shown that women who take oral contraceptives have a slightly increased risk of developing breast cancer, although this risk is small and goes away within 5 to 10 years of stopping their use. It is important to note that nearly all of the increased risk was seen among women who took a specific type of oral contraceptive, a "triphasic" pill, where the dose of hormones is changed in three stages over the course of a woman's monthly cycle.
On the other hand, birth control pills have been found to lower the risk of other types of cancers. For example, women who have ever used oral contraceptives have a 30% to 50% lower risk of ovarian cancer than women who have never used them. This protective effect increases with the length of time oral contraceptives are used and can continue for up to 30 years after a woman stops their use. Oral contraceptive use is also associated with a 15% to 20% lower risk of colorectal cancer.
While the connection between cancer risk and hormonal birth control is complicated and has changed over time with the launch of new products and doses, it is important to remember that cancer risk is influenced by multiple factors, including age, weight, reproductive history, and family history. Therefore, when choosing a birth control method, it is recommended to consider all the pros and cons and consult with a doctor to make an informed decision that takes into account individual health concerns and lifestyle.
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Birth control may cause muscle damage
Birth control pills have been found to have a variety of effects on the musculoskeletal system. While some studies have shown that birth control pills can protect against muscle injuries, others suggest that they may cause muscle damage.
A study published in Medicine & Science in Sports & Exercise found that female participants using birth control pills were 85% less likely than male participants to experience muscle sprains or tendon strains, the most common types of musculoskeletal injuries in sports. The study's lead author, Luis Rodriguez, a PhD candidate in the Joint Biomedical Engineering Graduate Program between UT Dallas and UT Southwestern, stated that these findings could advance preventative strategies and clinical interventions for musculotendinous injuries in various female populations.
However, other studies have suggested that birth control pills may also increase the risk of muscle damage, particularly during intense exercise. One investigation tested the hypothesis that women taking oral contraceptives with higher exogenous estrogen and progesterone levels would be more susceptible to exercise-induced muscle damage or have a slower recovery. While there were no significant differences in most measures of muscle damage between the groups, the recovery of maximal isometric strength took longer in the group taking oral contraceptives, with force recovery beginning two days post-exercise compared to four days for the non-contraceptive group.
Additionally, preliminary and controversial data suggest that muscle and tendon injuries in female athletes may occur more frequently during certain phases of the menstrual cycle when estrogen levels are high and progesterone levels are low. Estrogen, found in birth control pills, can improve muscle mass and strength, but too much can make tendons and ligaments less stiff, increasing the chance of injury. Birth control pills with a mix of estrogen and progestin may help regulate estrogen levels, lowering the risk of injuries.
While the impact of birth control pills on muscle damage is still being studied, it is important to note that individual responses to hormones can vary. Anyone interested in starting or stopping birth control should consult a healthcare professional to determine the most effective option for their needs.
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Frequently asked questions
There is no evidence that birth control causes muscle loss. In fact, a study published in Medicine & Science in Sports & Exercise found that female participants using birth control pills were 85% less likely than male participants to experience muscle sprains or tendon strains.
The side effects of birth control vary from person to person. Some commonly reported side effects include decreased sexual desire and arousal, decreased lubrication, weight gain, and increased cholesterol levels.
Some people report gaining a few pounds in the weeks and months after starting birth control, but this is usually due to water retention and not actual weight gain.
Yes, birth control pills can also help regulate periods, reduce menstrual cramps, decrease the risk of certain types of cancer, improve acne, and treat heavy bleeding and pain associated with conditions like fibroids and endometriosis.
It's important to talk to a healthcare professional about the potential benefits and risks of birth control before starting any new method. They can help you decide which type of birth control is most suitable for your individual needs and concerns.











































