凡在经期或行经前后出现周期性的下腹部疼痛、坠胀,或伴头晕头痛、恶心呕吐、腹胀腹泻、四肢发凉,甚至脸色苍白、疼痛引发晕厥者称为痛经。 痛经分为原发性和继发性两类。原发性痛经又称功能性痛经,是指生殖器官无明显器质性病变者。多见于未婚青年女性,常随月经初潮发病。继发性痛经多继发于生殖器官的某些器质性病变,如盆腔子宫内膜异位症、子宫腺肌症、慢性盆腔炎、妇科肿瘤、宫颈口粘连狭窄等引发的痛经。 原发性痛经的常见原因多为子宫位置过度向后弯曲(子宫后倾后屈);或子宫口狭小,经血排泄不畅,引起子宫痉挛性收缩;或子宫发育不良引起子宫不协调收缩;或经血中带有大片的子宫内膜、经血中含有血块引发子宫痉挛收缩;或子宫内膜释放前列腺素,刺激子宫引起子宫过度收缩,异常的子宫收缩引起宫体血流不足,使其肌肉组织缺血缺氧,引起痛经。另外,先天性体质虚弱、贫血、营养不良等也可出现虚寒性痛经。 有些妇女月经一直很正常,但因经期受寒、淋雨、 Any period during or after menstrual cycle of lower abdominal pain, bulging, or with dizziness and headache, nausea and vomiting, bloating diarrhea, cold limbs, and even pale, pain caused by syncope are known as dysmenorrhea. Dysmenorrhea is divided into primary and secondary categories. Primary dysmenorrhea, also known as functional dysmenorrhea, refers to reproductive organs without significant organic disease. More common in unmarried young women, often with the onset of menarche. Secondary dysmenorrhea secondary to reproductive organs in some organic diseases, such as pelvic endometriosis, adenomyosis, chronic pelvic inflammatory disease, gynecologic cancer, cervical stenosis and other induced dysmenorrhea. Common causes of primary dysmenorrhea, the uterus is often excessive backward bending (posterior uterine retroversion); or narrow cervix, menstrual discharge poor, causing uterine spasmodic contraction; or uterine hypoplasia caused by uncoordinated contraction; or Menstrual blood with a large film of the endometrium, menstrual blood contains blood clots caused by contraction of the uterus; or endometrial release of prostaglandins to stimulate the uterus to cause excessive contraction of the uterus, abnormal uterine contraction caused by inadequate blood flow in the uterus so that the lack of muscle tissue Blood hypoxia, causing dysmenorrhea. In addition, congenital constitutional weakness, anemia, malnutrition, etc. may also appear dysmenorrhea dysmenorrhea. Some women have been normal menstruation, but due to menstrual cold, rain,