The utility model relates to a hysteroscope, belongs to the technical field of medical instruments and mainly solves the problem that a rigid hysteroscope is easy to hurt uterus and low in diagnosis accuracy in operation. The technical scheme includes that the hysteroscope comprises an inner sheath, an outer sheath, a light source, a water outlet valve, a water inlet valve, a biopsy forceps through pipe and a probe. The far end of the outer sheath is bent downwardly, the inner sheath is arranged in an inner cavity of the outer sheath and extends to the top end of the inner cavity of the outer sheath, the light source is arranged one side of the top ends of the inner sheath and the outer sheath, the front end of the outer sheath is provided with a plurality of small holes, the water outlet valve is communicated with the top end of the outer sheath through a water outlet passage, the water inlet valve is communicated with the inner sheath through a water inlet passage, the biopsy forceps through pipe and the probe are arranged at the top end of the water inlet passage respectively and communicated with the inner sheath, the upper surface from the edge of the right end to the edge of the left end of the inner sheath is provided with a groove, and the far end of the outer sheath and a light source lens of the light source are provided with scales. The hysteroscope is simple in structure and convenient for observation, operation sight is broadened, diagnosis accuracy is improved, safety in examination of the hysteroscope is effectively improved, and injure and piercing of the uterus are avoided.