The onset of Marfan’s syndrome cannot be determined and is mainly related to its cause and individual factors of the patient, which cannot be generalized. Marfan’s syndrome is currently considered to be an autosomal dominant disorder, with a family history in 70% of patients and spontaneous genetic mutations in 30% of patients. Abnormalities in mesodermal development during fetal life can be detected in most patients before the age of 5 years, and cardiac ultrasound is the simplest means of examination. Patients typically grow tall and thin with elongated limbs and spider-finger-like fingers and toes. They are usually accompanied by vascular malformations, commonly aortic anomalies, valvular insufficiency or prolapse, and can also be combined with various cardiac arrhythmias, such as impaired cardiac conduction, atrial fibrillation or atrial flutter. In some patients, the condition may affect the eyes, such as lens detachment and retinal detachment changes. In conclusion, patients with a family history of Marfan’s syndrome are recommended to be registered for follow-up in a regular hospital, examined by a professional cardiologist, and treated symptomatically after a clear diagnosis.