Unicornuate uterus requires perfect hysteroscopy to make a clear diagnosis if necessary. Unicornuate uterus is a congenital malformation of female reproductive organs due to the abnormal development of one side of the paramedian tubes during embryonic period. Patients usually have no special discomfort in the early stage, but with the aging of patients, dysmenorrhea, infertility and other discomforts may occur after marriage. Hysteroscopy can visualize the physiological and pathological changes of the uterine horn and cavity, so it is necessary to improve the hysteroscopy to make a clear diagnosis. For patients who are found to have unicornuate uterus, no special treatment is usually needed. However, for women who are pregnant, they should pay attention to strengthening the monitoring of pregnancy, as well as early detection of miscarriage, preterm labor, fetal growth retardation and other complications during pregnancy, and at the same time pay attention to maintaining a happy mood and reducing psychological pressure. For women with unicornuate uterus combined with infertility, it is recommended that they go to the gynecology department of regular hospitals for consultation and active treatment under the guidance of doctors.