When is the best time for endocrine examination

The best time for endocrine examination is usually recommended to be conducted on the 2nd to 5th day of the menstrual cycle, when hormone levels are most stable and the results have more reference value. The specific examination time needs to be determined comprehensively based on the examination items, individual symptoms, and doctor's advice. For the six tests of female sex hormones, the 2nd to 5th day of the menstrual cycle is the early stage of follicles, during which basal levels such as follicle stimulating hormone, luteinizing hormone, estradiol, etc. can accurately reflect ovarian function. If luteal function needs to be evaluated, progesterone should be tested one week before menstruation. Thyroid function tests usually do not require a specific time, but they need to be performed on an empty stomach. Adrenal hormone testing is recommended to be performed between 8-10 am, when cortisol is at its peak. The insulin release test for patients with diabetes needs to be arranged in strict accordance with the doctor's advice, and is usually synchronized with the glucose tolerance test.

It is recommended that pregnant individuals complete endocrine assessments, including thyroid, blood glucose, and sex hormone testing, 3-6 months before pregnancy. Individuals with abnormal puberty development should choose the appropriate timing based on bone age testing. Menopausal women can check for symptoms such as hot flashes and insomnia at any time, but should avoid hormone replacement therapy. Special projects such as growth hormone stimulation tests need to be conducted on an empty stomach in the early morning, while anti Mullerian hormone tests are not affected by the menstrual cycle. Three days before the SEP examination, one should avoid vigorous exercise, alcohol consumption, and hormonal interference. Wearing loose clothing facilitates blood draws, and carrying past examination reports for doctors to compare. Those who take contraceptive pills or hormone preparations for a long time should inform their doctor in advance and stop taking them if necessary before checking again. If hormone abnormalities are found, a follow-up examination should be conducted 1-3 months later for confirmation.