What is the cause of bleeding in the second trimester of pregnancy

Patient's question:

No

Doctor's answer:

Your condition may be threatened miscarriage, which refers to a condition where there is a small amount of vaginal bleeding in the early stages of pregnancy, intermittent bleeding, accompanied by mild lower abdominal pain and lower back pain. It may lead to miscarriage. It is recommended to have an ultrasound examination first, and if necessary, receive treatment to prevent miscarriage.