Right-sided valve diseases have traditionally taken a secondary place in the management of valve disease, as they have a longer asymptomatic latency time and are considered “benign”. Recent advances, especially in tricuspid valve regurgitation, have increased the interest in earlier diagnosis and effective treatment to change the natural history of the disease. The aetiology can be congenital or acquired. The most common cause of pulmonary and tricuspid valve regurgitation is functional, secondary to dilatation of the right ventricle or pulmonary artery, respectively. The most prevalent aetiology is rheumatic in tricuspid valve stenosis, and congenital in pulmonary valve stenosis. Retrograde right heart failure symptoms predominate, characterised by systemic venous congestion (oedema in the lower limbs, ascites, hepatosplenomegaly) and anterograde congestion in the form of low output (fundamentally dyspnoea). Pulmonary congestion is rare and appears in cases of concomitant left-sided involvement. Diagnosis is based on echocardiography, which enables study of the valve anatomy and degree of severity. Surgical treatment is reserved for cases that are resistant to medical treatment (diuretics), and percutaneous treatment is an alternative in selected cases.