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| Intermenstrual bleeding ： ウィキペディア英語版 |
Vaginal bleeding
Vaginal bleeding is any bleeding through the vagina, including bleeding from the vaginal wall itself, as well as (and more commonly) bleeding from another location of the female reproductive system. Generally, it is either a physiologic response during the non-conceptional menstrual cycle or caused by hormonal or organic problems of the reproductive system. Vaginal bleeding may occur at any age, but always needs investigation when encountered in female children or postmenopausal women. Vaginal bleeding during pregnancy may indicate a possible pregnancy complication that needs to be medically addressed.
Blood loss ''per vaginam'' (Latin: through the vagina) (PV) typically arises from the lining of the uterus (endometrium), but may arise from uterine or cervical lesions, the vagina, and rarely from the Fallopian tube. During pregnancy it is usually but not always related to the pregnancy itself. Rarely, the blood may actually arise from the urinary tract (hematuria), although the vast majority of females can identify the difference. It can also be a sign of vaginal cancer.
== Differential diagnosis ==
There are many potential causes for abnormal vaginal bleeding.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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