Valvular lesions or valvular defects consist of the deformity, retraction or merger thickening of valve openings, with corresponding functional consequences of valvular regurgitation or narrowness. Acute rheumatic fever is the most common cause of valvular heart disease. Rheumatic valvular defects will cause subclinical setting, slowly progressive over the years. Other causes of valve disease can be congenital malformations, infections like syphilis, or trauma. By type of valve defect is the most common mitral stenosis, in terms refers mitral valve, and aortic regarding the most common defect is insufficient. The clinic will be very different if we have a failure (when the valve does not close properly) or to a stenosis (when not open well) and also according to the affected valve. The treatment of these injuries will pharmacological and, where insufficient cardiac surgery may be considered.