What causes bleeding after taking birth control pills?

At present, the common emergency contraceptives on the market generally include short-term contraceptives, long-term contraceptives and birth control pills. There are some side effects, the most common of which is bleeding. Generally, the first thing to consider is the side effect of the drug, which is related to the type of estrogen and progesterone and the dosage used. Different women respond differently to various growth hormones, and not all women will bleed after taking the medicine.

For short-term contraceptives, it usually occurs in the early stage of taking the medicine, and is manifested as spotting or menstrual-like breakthrough bleeding. Common causes of bleeding are missed doses, irregular doses, incorrect medication methods, or medication safety violations. Some women have hormone imbalance, and under the influence of emergency contraception, they cannot maintain the consistency of the uterine wall. The stage of bleeding, amount of bleeding, and duration of bleeding are different, and the treatment plans required are also different. Generally, bleeding does not need to be treated.

As for birth control pills, because they contain a lot of estrogen, taking them for a long time can cause a temporary increase in the female hormone in the blood. After stopping the pills, the body's estrogen level suddenly drops, causing withdrawal bleeding. Withdrawal bleeding usually occurs in small amounts within a week after taking birth control pills and usually lasts for five to seven days. In addition to the side effects of drugs, spontaneous bleeding cannot rule out other combined endocrine and some organic diseases.

In short, no matter what the cause is, if bleeding occurs a few days after taking birth control pills, it is best to go to the hospital and see a professional gynecologist for examination and adjust the treatment plan.