Moreover, birth control pills may trigger inflammation in the body, which can also contribute to headaches.Īccording to a 2005 study published in the American Journal of Obstetrics and Gynecology, about 10% of users experience frequent headaches during the first month of taking the pill. Oral contraceptive pills are known to increase the level of cortisol in the body, which can make you more sensitive to stress and thereby trigger headaches. This is why it is often referred to as the “stress hormone.” It is mainly responsible for controlling how your body responds to stress.
HeadachesĬortisol is a steroid hormone secreted by the adrenal glands and is involved in many body functions. Nearly half of all those on the pill experience this kind of spotting or untimely bleeding, but it tends to go away after the third month of use as your body becomes adjusted to the new hormones by then. However, oral contraceptives cause part of the uterine lining to break down in the middle of the menstrual cycle, causing mild bleeding or spotting between periods. The disintegrated uterine lining is eliminated from the body in the form of menstrual bleeding. The body normally sheds the endometrium at the end of the monthly menstrual cycle when the egg doesn’t get fertilized by a sperm. Your endometrium needs to be thick for the fertilized egg to properly attach to it and result in a successful pregnancy, but birth control pills keep that from happening. It is known to trigger hormonal fluctuations that cause thinning of the endometrium, or the inner lining of the uterus, especially during the first three months of taking the pill.
The regular intake of this medication alters the working of the reproductive system in different ways to prevent pregnancy. Birth control pills contain small amounts of synthetic estrogen and progestin that inhibit the activity of natural estrogen and progestin found inside the female body.
Estrogen and progestin are female sex hormones that control the functioning of the uterus and ovaries.
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