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Metritis is inflammation of the wall of the uterus, while endometritis is inflammation of the functional lining of the uterus, called the endometrium〔(The Free Dictionary, "Metritis" )〕 The term pelvic inflammatory disease (PID) is often used for metritis. ==Definitions== Postpartum metritis, also known as puerperal sepsis, occurs within 21 days and is most common within 10 days of delivery. Metritis is characterized by an enlarged uterus and a watery red-brown fluid to viscous off-white purulent uterine discharge, which often has a bad smell. The severity of disease is categorized by the signs of health: *Grade 1 metritis: An abnormally enlarged uterus and a purulent uterine discharge without any systemic signs of ill health. *Grade 2 metritis: Animals with additional signs of systemic illness such as decreased milk yield, dullness, and fever >39.5°C. *Grade 3 metritis: Animals with signs of toxemia such as inappetence, cold extremities, depression, and/or collapse. Clinical endometritis is defined in cattle as the presence of a purulent uterine discharge detectable in the vagina 21 days or more postpartum. Simple grading systems for clinical disease are based on the character of the vaginal mucus and typical (Grading schemes for clinical endometritis ) are widely used by veterinarians. Subclinical endometritis is characterized by inflammation of the endometrium and the presence of neutrophils in cytology or biopsy histology, in the absence of signs of clinical endometritis. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Metritis」の詳細全文を読む スポンサード リンク
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