Effect of Acupuncture Plus Governor Vessel Moxibustion Combined With Letrozole on Live Birth in Anovulatory Infertile Women With Spleen-kidney Yang Deficiency PCOS

Inclusion Criteria: * Women between the ages of 20 and 40. * It meets the diagnostic criteria of spleen-kidney Yang deficiency type PCOS. * According to World Health Organization standards (2010), the husband's semen analysis meets ① or ②.①Sperm density ≥15×10\^6/ml, and motile sperm (forward and non-forward) ≥40% (A + B + C ≥40%)).② Total motile sperm number ≥9 million.That is, the percentage of semen volume × semen density × motility sperm ≥9×10\^6. * Tubal patency tests, including hysterosalpingography and diagnostic laparoscopy, which show that at least one fallopian tube is open.(If there is no history of pelvic operation or abortion, patency test results are effective within 3 years;If there is a history of fertility within 5 years and there is no pelvic operation, the tubal patency test is not required). * Agree to discontinue the use of other therapies during the study. 6) Participate in the study voluntarily and sign the informed consent. Exclusion Criteria: * Eliminate other endocrine disorders: ① Patients with hyperprolactinemia (defined as two prolactin levels greater than or equal to 25ng/ml or determined by local standard values at least one week apart).The goal of excluding patients with hyperprolactinemia was to reduce variability among PCOS patients.These patients may be treated with alternative therapies (e.g., dopamine agonists).Those who had received treatment within the past year or were receiving treatment with normal test values could be enrolled. ② …