What happens to bleeding during 5 months of pregnancy

The symptoms of bleeding at 5 months of pregnancy may include the first, because the cervix is too short, cervical insufficiency, and caused by threatened abortion symptoms, generally accompanied by abdominal pain performance. The second, because the placenta position is too low, resulting in bleeding performance, mainly seen in central placenta previa, or partial placenta previa patients, bleeding without obvious abdominal pain symptoms. Third, bleeding caused by cervical lesions, such as cervical polyps or cervical erosion, is generally suffered from this disease before pregnancy. Fourth, bleeding may be caused by systemic diseases, such as thrombocytopenia purpura.