Drug ligation is the delivery of embolic drugs into the fallopian tubes through a hysteroscope. The corrosive nature of the drugs will bind and block the tubes, thus preventing the union of sperm and egg to achieve permanent contraception. The drugs used in drug ligation are more harmful to the body and irreversible. If you want to get pregnant again, it is difficult to unblock the tubes and the chance of conceiving again is very low. With the advancement of modern medical technology, it is possible to reopen the fallopian tubes after tubal ligation and the chances of conceiving again are very high. Before making a decision, it is recommended to consult a specialist and, under the guidance of the doctor, choose the appropriate method of contraception with ligation according to your situation.