It is best for men not to have children while taking blood pressure medication because most blood pressure medications have an effect on male semen, which can lead to an increased risk of fetal malformations. Most blood pressure medications do not have a particularly long half-life, and it is usually advisable for men preparing for pregnancy to stop taking blood pressure medications for more than half a month. In addition to stopping antihypertensive medication, it is also advisable for men to avoid exposure to any other drugs and radiation, as these are not good for the fetus. In addition, men who are preparing for pregnancy need to pay attention to the following points: first, quit smoking and alcohol. Second, eat more vitamin-rich vegetables and fruits. Third, appropriate physical exercise to strengthen physical fitness. Fourth, pay attention to rest and ensure sufficient sleep, the above points have certain benefits for the preparation of pregnancy and fetus.