Birth control pills to prevent pregnancy through the drug effect. Contraceptives were divided into male and female contraceptive pill. Male contraceptives generally through the inhibition of sperm production, reducing the number of sperm to reach oligospermia or even azoospermia can not conceive.
How to choose the most suitable contraceptive own

Sub-short-acting oral contraceptives, long-lasting, quick-three

Short-acting oral contraceptives: the role of the mechanism is to prevent ovulation. No. 1, there are oral contraceptive pills, oral contraceptive pills on the 2nd and compound 18 A contraceptive pills.

Fu Fa: never date 5th day of menstrual day medication, and even served 22 days, not interval. Can contraceptive 1 month, the general withdrawal 1 – 3 days of menstruation, menstrual No. 5 from the next day to continue to take, methods, ibid.

Why did the first 5 days from menstrual medication can not leak clothes? Because contraceptives primary role is to inhibit ovulation, if the medication until after the 6th day, the egg cell developed to a certain extent, they fail to inhibit, resulting in the possibility of pregnancy, If the middle of leakage clothes, prone to vaginal bleeding, disruption of the normal menstrual cycle.

Long-acting oral contraceptives: their role in mechanism of inhibition and change Yunluan speed, the monthly service can be a contraceptive 1 month, suitable for long-term cohabiting couples.

Fu Fa: On the 5th day menstrual cramps medication one, the first 25 days of medication 2, on a monthly basis after the 2nd one to take the medication the same day service.

Quick oral contraceptives: birth control pills, also known to visit relatives. Its mechanism, mainly quick inhibit ovulation, affecting sperm penetration and make Yunluan not implantation. Benefits are not subject to restrictions on the menstrual cycle, when visiting relatives when the taking.

Who should not take birth control pills?

Oral contraceptive method is simple, but there are cases of women, not to take.

First, breast-feeding women: breast-feeding women need to give the baby breastfeeding, breast milk after the service of every contraceptive pill ingredients, infant food such milk will affect the physical development, and even some exceptions: If the breast increases, nausea and vomiting, a baby girl vaginal bleeding, male testicular atrophy.

2, menopausal women: Because menopausal women endocrine disorders, ovulation is not fixed, oral contraceptives not only fail to achieve the desired results, but also the impact on health, prone to coronary heart disease and cholelithiasis, or bleeding of the palace.

Third, suffering from acute hepatitis, nephritis, heart disease, hypertension, diabetes, thyroid hyperactivity, uterine fibroids, tuberculosis and other diseases of women, should not be taken in order to avoid worse.

4, abortion, women did not come in before menstruation, should not be taken until after the first period came to taking it in order to avoid shrinkage of the uterus, causing irregular menstruation or amenorrhea.
Many birth control pills, each has different characteristics, according to what to use for your own birth control pills do? A few cases under the principle of the interview for your reference.

1. Contraceptive effectiveness: To contraceptive effect is good, short-acting contraceptives and injections once a month injectable contraceptives best, followed by long-acting oral contraceptive pills, is for external use less reliable contraceptives.

2. User-friendly line: short-acting oral contraceptives need continuous wear, daily wear, clothes that the impact of leakage effects, inconvenient. January serving a long-acting contraceptives and injections once a month injectable contraceptives convenience. Relatives may at any time to begin serving pieces, without any conditions. External female and male contraceptive film at any time can be more convenient.

3. Beneficial to control the menstrual period: short-acting drugs and on medication had no effect on the menstrual cycle or affect small; visit some people, after serving pieces with irregular menstruation, menstrual flow, but not much; injectable contraceptives menstrual period can be extended; suits the medication membrane without any effect on the menstrual period.

4. Side effects: Most birth control pills containing progesterone, estrogen, may cause side effects such as nausea and vomiting. In January a long-term drug response to heavier, short-acting oral response to light, reaction shots, and lighter, visiting relatives contraceptives reaction is not obvious.

In addition, women over 40 years of age and smoking women, due to cardiovascular disease susceptibility, it should not use oral contraceptives, as suffering from internal diseases and certain gynecological diseases are not easy to port reported contraceptives.