口服避孕药通常为含有雌激素与孕激素的复合物。一般认为这种复合物会引起血压升高。英国曾报告23,000人口服雌孕激素避孕药,随访5年的结果。服含孕激素超过3毫克者与少于3毫克者作比较,高血压的发生率前者较高;而雌激素含量50微克与多于50微克者比较,与高血压的发生无关;在雌激素含量 Oral contraceptives usually contain estrogen and progesterone complexes. It is generally believed that this compound will cause high blood pressure. Britain has reported 23,000 oral estrogen and progesterone pills, followed up for 5 years. Prevalence of more than 3 mg progesterone and less than 3 mg were compared, the former high incidence of hypertension; and 50 g estrogen compared with more than 50 micrograms who had nothing to do with the occurrence of hypertension; in the estrogen content