What are the dangers and side effects of the female contraceptive pill?

The hazards and side effects of female contraceptive pills mainly include early pregnancy-like reactions, irregular uterine bleeding, amenorrhea, breast milk reduction, hypercoagulability, mild impairment of liver function, and so on.
Female contraceptive pills mainly through the inhibition of ovulation and play a contraceptive effect, so it is easy to lead to some adverse reactions.
It is found that 5%~15% of women using the pill will experience nausea and vomiting and choose to eat and other early pregnancy reactions, irregular uterine bleeding is common in the first few cycles of the pill, 1%~2% of women experience amenorrhea, the original menstrual history of abnormal menstruation is more likely to occur amenorrhea, a few breastfeeding women will experience breast milk reduction.
In addition, adverse reactions such as hypercoagulability are often seen abroad, and the use of female contraceptives has been clinically found to be associated with the occurrence of liver tumors.
This type of drug is used with caution in congestive heart failure or other edema tendency, used with caution in patients with hypertension, acute and chronic liver disease and diabetes mellitus requiring insulin treatment should not be used, such as long-term use of the drug in the process of breast lumps, the drug should be stopped immediately. Cervical cancer patients are prohibited. The drug should be applied under the guidance of a doctor.