normal menstruation for the duration of two to seven days, a small number of three to five days. If sustained period of time over seven days, even if the menstrual extension. Menstrual attention should be extended, hold in-depth causes. Usually associated with the following diseases:

　　 menstrual extend the issue is how

　　 blood diseases:

　　 such as patients with epilepsy Purple, aplastic anemia, often accompanied menstrual Laichao, if serious bleeding, menstrual extension. Others such as chronic anemia, chronic hepatitis, cirrhosis, nephritis, will enable fragile vessel wall, causing increased permeability of bleeding.

　　 pelvic inflammatory disease, the womb dividend meat, endometritis:

　　 pelvic inflammatory disease, the womb dividend meat, endometritis, all shares of intrauterine bad blood circulation, or necrosis degradation caused by pelvic congestion and excessive menstrual period extended.

　　 fallopian tubes or nearby pelvic organs such as inflammation of appendicitis, it can spread through direct cause of tubal ovarian inflammation, pelvic peritonitis, inflammation in the general vicinity of the fallopian tube and ovary side.

　　 chronic mast of the uterus (womb myositis):

　　 because of pelvic congestion, ovarian estrogen continued to increase, the uterine muscle hypertrophy, and cause excessive menstrual period is too long.

　　 endometriosis:

　　 often affect uterine or endometrial muscle contraction caused by increased or excessive menstrual period extended.

　　 uterine fibroids:

　　 especially submucosal uterine fibroids, uterine area of expansion to contraction it abnormal, and can be caused by excessive menstrual period is too long.

　　 dysfunctional uterine bleeding:

　　 without ovulation of dysfunctional uterine bleeding and endometrial of irregular loss, due to endocrine dysfunction caused by menstrual extension.

　　 placed Jieyu Qi also easy to cause excessive menstrual.

Editor: Lin Shu-hua

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