Tubal blockage is caused by inflammation of the fallopian tubes. You should not have intercourse until about two weeks to one month after the lavage treatment to avoid cross infection. Tubal lavage is a surgical procedure used to treat female infertility. It is an operation of the uterine cavity and can cause some irritation to the endometrium and a small amount of vaginal bleeding may occur after the operation. Because the uterine cavity is in an open state, intercourse during this period is very likely to cause infection. Moreover, if the adhesions are separated and the fallopian tubes are not open after the lavage, ectopic pregnancy, or ectopic pregnancy, can easily occur if intercourse is performed at this time, which can be life-threatening if it ruptures. Therefore, sexual intercourse and tub bathing are prohibited for two weeks after surgery, and patients can use antibiotics to prevent infection as appropriate. Pay attention to hygiene and rest in daily life, strengthen nutrition, and do not work too hard.