There is no way to self-test whether the fallopian tubes are open or not, but you have to go through an examination to know. If self-test can determine whether the tubes are open or not, you can only judge by whether you are pregnant or not, if you can get pregnant, it proves that the tubes are open. However, if you are not pregnant for more than one year, you can’t tell if the problem is tubal incompetence, because there are many reasons for infertility, such as ovarian, endocrine and uterine problems, all of which may affect female conception. In clinical practice, to determine whether the fallopian tubes are patent, mainly through tubal lavage and tubal imaging, the examination of fallopian tubes should be performed within 3-7 days after menstruation, and no intercourse should be allowed before the examination, and inflammatory diseases of the reproductive tract should be excluded.