Anorectal surgery dosing device

The invention relates to the technical field of dosing devices, in particular to an anorectal surgery dosing device. The anorectal surgery dosing device comprises an injection tube, a dosing head and an expanding and moving device; the dosing head is in threaded connection with the injection tube and provided with a dosing hole communicating with an outlet, the dosing head is sleeved with a soft rubber sleeve, one end of the soft rubber sleeve is provided with a flat part, and an end, away from the dosing head, of the flat part is provided with a seam; and the expanding and moving device is arranged on an outer side of the injection tube and an outer side of the dosing head and comprises an expanding part and a moving assembly, the expanding part is arranged at one end of the moving assembly and facilitates entering of the dosing head by opening the anus, and the moving assembly is connected with the injection tube, such that movement of the injection tube and entering of the dosing head are achieved. Through