Pregnancy test pliers are mainly used to dilate the vagina and expose the cervical opening and the side walls of the vagina to facilitate the doctor’s examination. The duckbill forceps used in pregnancy tests are mainly called duckbill forceps because they are shaped like a duck’s beak, and are clinically known as a speculum or a dilator. Dilators are used to dilate the vagina, exposing the side walls of the vagina and the cervical opening, making it easier for the doctor to peek inside the vagina and the cervix, as well as to take secretions from the vagina, which is a commonly used instrument in gynecological examinations. Before using the dilator, it is necessary to apply lubricant to the vaginal opening and inside the vagina, so as to avoid discomfort and pain when placing the vaginal dilator because the vagina is dry and not smooth. Women should also take care to relax and not be overly tense during the examination to avoid injuries when placing the device. It is recommended to go to a regular hospital and have it operated by a professional doctor to minimize discomfort.