异病同治是中医学辨证论治的主要组成部分，异病可以同治，不取决于病因、病位及症状，关键在于辨识其有无共同的病机与证候。女子以血为本，而气与血又是相互依存、相互滋生的，气血失调是妇产科疾病的重要病机。消结汤的主要功效是理气活血化瘀，经化裁治疗输卵管积水、卵巢囊肿等妇科疾病，均取得满意的效果，体现了异病同治的具体应用。

Treating the different diseases with the same therapy is the main part of traditional Chinese medicine.Treating the different diseases with the same therapy doesn't depend on the cause of diseases，location of diseases and symptoms of diseases.The key lies in the identification of common pathogenesis and syndrome.The blood is the base of female's life.Both qi and blood are interdependent and interpromotion.The derangement of qi and blood is the significant common pathogenesis ofdiseases in thedepartmentofobstetrics and gynecology.Xiaojie decoction can regulate qi，activate blood and absorb clots.There are satisfactory results in treating hydrosalpinx and ovarian cyst of gynecological diseases using Xiaojie decoction，which reflects the specific application of the law on treating the different diseases with the same therapy.