The best time to check sex hormone six needs to be decided according to the needs of the condition. 1, infertility need to check sex hormone six, the best in the menstrual period after the 2-5 days, this period belongs to the early follicle, can respond to the functional status of the ovary and the basic hormone level. 2.If you know whether there is ovulation or not, check progesterone and estrogen about 20 days before menstruation. 3.Those who do not have menstruation for a long time and are eager to know the test results can go to the hospital for examination at any time. This period is by default the time before menstruation, and the results need to be referred to the results of the luteal phase. 4, the use of sex hormone drugs, need to be stopped 20 days after the hormone level check. If you have used progesterone and then check the sex hormone six on the third day of menstruation, the result will be affected by the drug, because the drug needs a period of time to be completely metabolized, so you can check the hormone level 20 days after stopping the use of progesterone. 5.If you have been taking certain medications for a long time, you need to communicate with your doctor whether to stop taking the medication before checking, so as not to affect the results. Before the examination, you need to have a regular work and rest, do not be tired and stay up late; eat a light diet the day before the blood draw, eat less protein food and do not be too greasy. It is best to have the blood drawn before 11:00 a.m., sit still for 15 minutes, and take the test on an empty stomach. In general, men can come to the hospital for examination at any time, there is no restriction.