Ovarian foramen undulant may cause dizziness, fainting and other manifestations, which are mainly related to ischemia and hypoxia of tissues caused by cardiac shunt due to this disease, and should be consulted in time. Foramen ovale is a congenital disease, mainly associated with genetic abnormalities in the fetus, resulting in abnormal heart development. The foramen ovale is located between the right and left atria, and when its closure is impaired, it causes blood to divert from the right to the left side of the heart, resulting in a range of symptoms. The disease usually does not cause obvious symptoms. Some people may experience dizziness, fainting, or palpitations, shortness of breath, dyspnea, chest tightness, and weakness after exertion. When the disease has no obvious symptoms, regular outpatient follow-up is usually sufficient and no special treatment is required; if clinical symptoms appear, timely consultation and regular treatment are required.