oral contraceptive造句怎么写

Hormone changes - changes in hormones due to pregnancy, menstruation, oral contraceptive use or a hormonal condition called hypothyroidism.

Smoking seems to decrease estrogen exposure, thereby decreasing the cancer risk, and oral contraceptive use increases progestin levels, thus providing protection.

When we excluded women who were pregnant or receiving oral contraceptive or hormone replacement therapy – all possible causes of blood clots – the risk for women was reduced by 55 percent.

However, scientists are continuing research on that issue, and they may ultimately develop tests or methods that would improve drug efficacy for women who wish to use oral contraceptives.

Overall, women who had used any oral contraceptive had a 50 percent reduction in the risk of developing ovarian cancer than women who had never taken the Pill, the investigators report.

The oral contraceptive pill, known simply as "the pill," is a marvel of modern chemistry. It's the most popular form of birth control in the United States.

The woman had been taking an oral contraceptive regularly and her gynaecologist could not vouch for her wish to start a family - a routine question in that area of medicine.