Basal body temperature is gynecological regulation, guidance for conception commonly used means of examination, although the introduction of the Internet is a lot, but there are still many patients in the clinic or the network of this consultation, so here is a brief introduction to it, I hope it will help you. Definition of Basal Body Temperature] Basal body temperature, i.e., the body temperature in the basal state, is generally measured after 6-8 hours of full sleep and before talking, getting up, relieving oneself, eating, etc. In short, before measuring the body temperature, the patient is required to take a temperature test. In short, before taking your temperature, try not to do any non-essential activities except for breathing, heartbeat, and opening your eyes. The value of basal body temperature reflects the function of the ovaries, allowing you to determine whether or not ovulation is occurring, whether or not the corpus luteum is functioning optimally, and even whether or not you are pregnant, which guides your treatment; it also guides you to conception and contraception. Moreover, it costs nothing! In my clinic, for menstrual disorders and infertility, we routinely recommend the measurement of basal body temperature, simple, effective and economical, why not. 【The principle of basal body temperature】 1, after ovulation due to the ovary luteum, the corpus luteum can secrete progesterone, and progesterone can affect the body temperature center, so that the basal state of the body temperature rises, often rises 0, 3 ℃ or more. If not conceived, about 2 weeks after ovulation, the corpus luteum atrophies, progesterone drops rapidly, body temperature then drops, and menstruation occurs. Endocrine normal, regular menstruation of women, 2 weeks after the onset of menstruation and ovulation, the body temperature then rise again, so on and so forth, week after week, medically known as the “biphasic body temperature”; 2, do not ovulate women, the basal body temperature is always at a lower baseline level, medically known as the “monophasic body temperature”; 3, the luteal body atrophy, progesterone rapidly decline, body temperature then drop, the onset of menstruation, the body temperature is often more than 0,3 ℃. 3, luteal function is not good women, basal body temperature, although the performance of the “biphasic body temperature”, but often high temperature stage is short, and / or temperature difference is less than 0, 3 ℃. If you don’t ovulate, you won’t get pregnant, and if your corpus luteum is not functioning well, you will have a hard time conceiving, and you will have a miscarriage after pregnancy. Measuring Methods and Precautions for Basal Body Temperature】 1. Dump the mercury column to below 36℃ (around 35℃ is better) before each night, and put the thermometer in a reachable and safe place by the bedside where it will not be heated. Never shake the thermometer after waking up in the morning! 2, every morning after waking up (night shift, after 6-8 hours of adequate sleep), the immediate mouth to measure the sublingual temperature for 3-5 minutes, but do not fall asleep again ha! Measurement will be recorded after the temperature; 3, temperature measurement before must pay attention to avoid activities, keep quiet, can not talk, not to mention get up and move around a little, convenient, drinking and eating, etc.; cohabitation, colds, insomnia, etc., may affect the body temperature, should be labeled. Other conditions are also appropriate to record, such as vaginal bleeding, lower abdominal pain, leukorrhea changes, etc.; 4, the best time to measure every morning is not too big a gap (occasionally sleep a lazy, late measurement, or forget to measure, do not have to have a psychological burden, mark it out on it); I strongly do not recommend in order to measure the body temperature, put an alarm clock every day to wake up at regular intervals! Living is already so tiring! Don’t let taking your temperature interfere with your rest and add to your mental and physical burdens! If you can’t do it every day, it’s better to do it every two or three days. In short, taking your basal body temperature is meant to be a help, not a nuisance or a burden. This paragraph is purely personal opinion, if you visit other physicians, please follow your doctor’s opinion. 5, mercury thermometer is better, the measurement data is more credible, but only if you do not bite it! Mercury is toxic, remember to remember! If you really do not like mercury thermometer, other thermometers can also be. Some patients say: electronic thermometer measurement for more than three minutes is also very accurate, but can not be based on the electronic thermometer beep, otherwise the measurement results may be low or unreliable; 6, can be recorded daily in a small notebook, not measured on the day of the corresponding to leave a position, inspection, treatment, medication start and stop date, should be noted in the notes.