Purpose : Dysmenorrhea which repeat every menstrual phase give complaints like pain, vomiting, nasal bleeding and etc. But in many textbooks pathogenesis and treatment process of dysmenorrhea obscure. So the purpose of this study is to identify the conception, pathogenesis and treatment process of dysmenorrhea. Methods : After catching the limitations of preexistence theory about dysmenorrhea, I show a meaningful argument of dysmenorrhea. Results : The conception, pathogenesis and treatment process of dysmenorrhea are like this. Dysmenorrhea which occurs for menstrual phase can make deficiency of blood. There are intimate relations between uterine function and the five Zang-organs, especially heart, spleen and liver, so menstruation induces the weakness of those organs. And the insufficiency of kidney and conception-thorough vessel which have control over the uterine function can make dysmenorrhea. Conclusion : The deficiency of kidney which is responsible for holding Qi breaks down the balance of Zang-organs Yin-Yang, then dysmenorrhea appears through Zang-organs weakness of heart, spleen and liver. For the treatment of dysmenorrhea, we should consider preferentially the deficiency of kidney, afterward Bianzheng Lunzhi of the Zang-fu organs.