Is the safe period safe for women? Contraception during the safe period is not safe enough

　　The safe period is a contraceptive method with a long history. It seems to be 100% natural and has no side effects. It seems to be a very good choice. However, many people have certain doubts about contraceptive methods, so people often ask female safe period Is it safe? How to self-test a woman’s safe period? Next, I will introduce them one by one for your reference.

　　Is the period safe for women?

　　The answer is: Calculating the safe period seems to have no side effects, but it is affected by many uncertain factors such as menstrual cycle fluctuations. The contraceptive effect is really unreliable, and it cannot be called "safe" at all.

　　The principle of the safe period sounds quite reliable, but in fact the so-called ideal state does not exist, so it will face many difficulties in calculation.

　　The safe period calculation method we often hear is a simple estimate like "first seven and last eight" or "first three and last four", but it is only calculated based on the most recent menstrual cycle. For such an algorithm to be accurate, it requires that women's menstrual cycles must always be as punctual as a clock. In fact, not all women ovulate regularly. Even for women who ovulate regularly, their menstrual cycles will be affected by environment, emotions, healthy It fluctuates due to the influence of the situation, and it is impossible to guarantee complete punctuality. Therefore, such calculations will bring large errors.

　　In order to reduce such errors, there are also some relatively more accurate safe period calculation methods, such as Ogino's formula. This method involves recording the menstrual cycles of the last 6 to 12 months, and selecting the values ​​of the longest and shortest cycles as important parameters to calculate the safe period. The menstrual cycle is defined as the period from the first day of menstruation to the day before the next menstrual period.

　　Although this method is more reliable than simple estimation, because it seems that it uses the longest and shortest values ​​in multiple periods to flatten the fluctuations of the period. But it is very troublesome to use, and even so, it cannot escape the influence of uncertainties. Calculating the accurate period is almost a small probability event. Depend on Safe period contraception , basically a matter of luck and character.

　　In addition, some other factors may also affect the calculation of the safety period. The safe period is generally calculated based on a woman's observed menstrual cycle, but in fact vaginal bleeding is not necessarily a true menstruation, and may also be bleeding during ovulation and other conditions. If non-menstrual bleeding is mistakenly calculated as menstrual bleeding, it will also lead to inaccurate calculation of the safe period.

　　How to self-test a woman’s safe period? Four ways to teach women to calculate the safe period

　　1. Intermediate pain method

　　There is pain in the lower abdomen between two menstruation periods, which is exactly the time before ovulation, and is called intermediate pain. According to a survey by experts, 97% of intermediate pain is felt before ovulation. Therefore, if you feel intermediate pain, you can judge that ovulation will occur within 24 hours. However, less than 20% of women experience intermediate pain.

　　2. Basal body temperature method

　　Basal body temperature refers to the body temperature of healthy people after waking up in the morning. Generally, it is the lowest body temperature of the day. In women of normal reproductive age, the body temperature rises immediately after ovulation and continues until the beginning of the next menstrual cycle. Use the changing pattern of a woman's basal body temperature to find her ovulation period, and refrain from sexual intercourse 3 to 4 days before and 5 to 7 days after it.

　　3. Cervical mucus method

　　This method of calculating the safe period is based on the basic fact that female endocrine secretions increase during ovulation. common sense As a basis, the safe contraceptive period is determined by observing the changes in mucus in endocrine secretions through a microscope. to be in Hospital Gynecology Check, the accuracy is relatively high.

　　4. Observation method for changes in vaginal secretions

　　Women's vaginal secretions change regularly with different periods of the menstrual cycle. During ovulation, there is more and more mucus, there is a moist feeling in the vagina, the mucus becomes clear, and the mucus can be stringy, up to 10 cm long. The last day this mucus lasts is usually the period of ovulation.

　　If you want to achieve the contraceptive effect by calculating the safe period, the most important thing is to calculate the female safe period accurately, otherwise contraception during the safe period will inevitably fail. introduced above Self-assessment of women’s safe period A good method, women can try it.