Obstetrics and gynecology test paper is very much, mainly ovulation test paper and early pregnancy test paper and pH test paper, ovulation test paper is mainly used to monitor whether there are egg cells discharged, mainly to detect the luteinizing hormone changes in the body level. Early pregnancy test paper is mainly used to detect whether pregnancy, after pregnancy, the body can secrete human chorionic gonadotropin, when the human chorionic gonadotropin reaches a certain level, through the early pregnancy test paper can be detected, and can not judge whether it is a normal pregnancy. pH paper is also known as the pH paper, is mainly used to detect the pH of the vagina, which can be used for the detection of vaginitis, and to determine whether the premature rupture of fetal membranes occurs after pregnancy. Each type of test strip requires normal operation or repeated monitoring to avoid the possibility of false negatives or false positives, which may affect the judgment of the results.