For preterm miscarriage, you can take birth control medication. If there is a small amount of vaginal bleeding in the early stages of pregnancy, or if there is mild lower abdominal pain, you can use birth control medication. Commonly used ones are progesterone soft capsule 100mg, 2 times a day; you can also take drospirenone, the dose of which is 10mg, 2 times a day; you can also apply Chinese medicine, such as birth control pills and pregnancy kang, which can be taken. For pre-eclampsia miscarriage, if it is caused by lower progesterone, they are all effective. But birth control treatment is only a treatment method, not every preterm miscarriage, can be successfully preserved. If it is not preserved through birth control, it also forms a refractory miscarriage, which is also a natural method of elimination, or it may be due to the abnormal development of the embryo itself.