Dizziness, headache, chest pain, and shortness of breath may occur after oval foramen occlusion blockage treatment. 1. Dizziness and headache: After the oval foramen occludens is treated with occlusion surgery, blood clots may be generated and lead to the blockage of blood vessels in the brain, which may cause dizziness, headache and other uncomfortable symptoms. 2. Chest pain: after occlusion surgery, some patients may have postoperative pain, and there is a possibility of local infection, which may cause persistent chest pain. 3. Shortness of breath: After oval hole occlusion, it may cause arrhythmia, such as atrial premature beats, which may lead to shortness of breath. After the oval foramen occludens occlusion, you need to carry out regular anticoagulation and anti-infection treatment, you can follow the doctor’s instructions to use penicillin, warfarin and other drugs, but also pay attention to proper rest and avoid overwork, in order to slowly return to normal.