At present, there are many types of oral contraceptives, but their mechanism of action is basically the same. They either act on the feedback function of the diencephalon and pituitary gland to inhibit the secretion of hormones related to ovulation, making the person unable to ovulate in the short term; or they prevent the endometrium from becoming thicker and cannot be implanted even if ovulate; or they change the secretion of mucus in the cervical canal, making it difficult for sperm to enter the uterus. Contraceptives not only prevent contraception
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penis vibrator , hemoptysis, suspected of pulmonary infarction; 5. Ptosis, diplopia, loss of visual field or papilloedema, suspected of retinal artery thrombosis; 6. Loss of appetite, fatigue, skin itching or jaundice, suspected of liver dysfunction; 7. Long-term nausea and vomiting, which may be hormone-dependent side effects or digestive system diseases; 8. Unexplained vaginal bleeding, suspected cancer of sexual organs; 9. Liver enlargement and pain.
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