Luteinizing hormone

Luteinizing hormone is produced by the pituitary gland. Female luteinizing hormone is involved in promoting ovulation of follicle stimulating hormone, promoting the formation and secretion of estrogen and progesterone; in the male luteinizing hormone, it promotes testicular synthesis and secretion of androgen. Determination of the content of luteinizing hormone in serum helps to determine the functional status of the hypothalamic-pituitary-gonadal axis and predict the time of ovulation. Basic Information Specialist classification: growth and development check classification: endocrine examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Found in pituitary dysfunction, ovarian function decline, hypothalamic amenorrhea, secondary sexual dysfunction. Normal value: Male: 1-8U/L Female follicular phase: 1-12U/L Ovulation period: 16-104U/L Luteal phase: 1--12U/L Menopause: 16-66U/L Above normal: Found in central precocious puberty, polycystic ovary syndrome, pituitary amenorrhea, congenital ovarian hypoplasia, congenital testicular hypoplasia, oophorectomy, women's menopause. negative: Positive: Reminder: The examination is recommended for the first 2-3 days of the predicted peak (14-18 days before menstruation). Normal value Male 1 ~ 8U / L. Female follicular phase 1 ~ 12U / L. The ovulation period is 16 to 104 U/L. The luteal phase is 1 to 12 U/L. Menopause 16 ~ 66U / L. Clinical significance Abnormal results: Reduced in pituitary dysfunction, ovarian function decline, hypothalamic amenorrhea, secondary sexual dysfunction. Elevation is seen in central precocious puberty, polycystic ovary syndrome, pituitary amenorrhea, congenital ovarian hypoplasia, congenital testicular hypoplasia, postoperative oophorectomy, and menopause. People who need to check: Amenorrhea, menopausal women, diagnosis of ovarian function problems. Low results may be diseases: functional hypothalamic amenorrhea results may be high disease: congenital ovarian hypoplasia, congenital testicular hypoplasia, less menstrual flow, precocious puberty Before the inspection: Make sure that the ovulation monitoring test paper must be purchased at a regular pharmacy, and it is produced by a regular pharmacy. At the time of inspection: First, the LH peak in the menstrual cycle is a relatively short period of time, from 48 to 50 hours from the beginning to the end. LH is quickly cleared from the body and usually only appears positive in one day, sometimes for two consecutive days. Therefore, in order to detect the LH peak, it should be tested daily. It is recommended to perform the first 2~3 days of the predicted peak (14~18 days before menstruation). Second, the results of urine LH measurements are very sensitive to fluid intake and measurement time, but there is no need to limit intake, just try to avoid heavy drinking in a short time before testing. Third, in theory, the first morning urine is the best test specimen because the urine is most concentrated at this time. But in fact, if only once a day, the most effective measurement time is 3-8 o'clock in the afternoon, during which time the LH peak of 90% of the ovulation cycle can be monitored. Monitoring more than once a day can also increase the detection rate, but an increase in the number of monitoring will also increase the cost. Not suitable for people: people without any symptoms. Inspection process Test with ovulation monitoring test paper. Not suitable for the crowd Nothing. Adverse reactions and risks Nothing.