Thalassemia at the age of 30 is usually a mild form of thalassemia, with mild clinical symptoms and little impact on the patient’s life expectancy. Thalassemia, according to the severity of the disease, is divided into four types: thalassemia gene carriers, mild thalassemia, moderate thalassemia and severe very severe anemia. Patients with thalassemia major develop the disease around 3-12 months after birth and die at most around 5 years of age. Usually, thalassemia detected at the age of 30 is mild or severe thalassemia, with a hemoglobin concentration usually above 90 grams per liter and basically no typical clinical manifestations of anemia. Therefore, thalassemia found only at the age of 30 has basically no effect on life expectancy, can survive for a long time and has no impact on daily life. Patients with thalassemia need to pay attention to avoid infections in their daily life, and if necessary, they can be treated with regular blood transfusions.