Marfan syndrome, generally referred to as Marfan syndrome, is a genetic disorder that is predominantly inherited in an autosomal dominant manner. Marfan syndrome is an inherited connective tissue disorder that can result from the inheritance of an abnormal gene if the father or mother carries the causative gene. In addition to being affected by heredity, it may also be caused by a defect in the fibrinogen gene, which can lead to cardiovascular, skeletal, and eye lesions in patients. Patients may develop cardiovascular lesions such as entrapment aortic aneurysm, mitral valve prolapse, and mitral valve closure insufficiency. Skeletal lesions such as bone deformities, hypotonia, flat feet, and funnel chest may also occur, and when the disease involves the eyes, symptoms such as lens dislocation and high myopia may occur. If there is a family history of Malfontaine syndrome in your family, you should be examined and actively treated for the disease. Early treatment of the disease can help to slow down the progression of the disease. You should also stop smoking and drinking, adopt good dietary habits, and avoid strenuous exercise.