倍美力是一种含雌激素药物，广泛应用于临床。为了解倍美力对性周期的影响．将60只性成熟Wistar雌鼠随机分成3组：卵巢摘除组．假手术组和倍美力组。结果表明，卵巢切除后1个月内大鼠无动情期，切除1个月后每天灌胃给予倍美力0．2mg／只，持续2周，经阴道涂片，发现无核角化上皮细胞明显增多，并聚集结块，可以判断有动情期存在，可见倍美力能影响雌鼠的动情期。 Beverly is a estrogen-containing drug, widely used in clinical. To understand the influence of Beomex on the sexual cycle. Sixty mature female Wistar mice were randomly divided into three groups: ovariectomized group. Sham-operated group and Beometrid group. The results showed that in rats within 1 month after ovariectomy without estrus, 1 month after resection, gingivalidil 0.2mg / only given orally daily for 2 weeks, vaginal smear and found that nuclear corneal epithelial cells Significantly increased, and agglomeration, you can determine the existence of estrus, shows that the times of the United States can affect female estrus estrus.