功能失调性子宫出血（简称功血）是一种常见的妇科疾病，多见于青春期和更年期。临床表现为月经失去其正常规律的周期，代之以不同频率的经量过多、经期过长的子宫出血。内外生殖器无明显的器质性病变，无妊娠并发症或全身出血性疾病。在青春期，由于丘脑下部和垂体的调节功能 Dysfunctional uterine bleeding (referred to as dysfunctional uterine bleeding) is a common gynecological disease, more common in adolescence and menopause. Clinical manifestations of menstruation loses its normal pattern of cycles, replaced by different frequency of excessive, menstrual excessive uterine bleeding. No obvious internal and external genital organic disease, no complications of pregnancy or systemic hemorrhagic disease. In adolescence, due to the hypothalamus and pituitary regulatory function