Children with thalassemia have special facial features, developmental delay and abdominal swelling. 1. Special facial features: children with thalassemia mainly show special facial features such as enlarged skull, bulging forehead, high zygomatic bones, widened distance between eyes, and obviously collapsed nose. 2. Developmental delay: children with thalassemia have slow development compared with children of the same age, which is mainly manifested as short stature, thinness, mental retardation, slow reaction and other manifestations. 3. Abdominal swelling: thalassemia can lead to enlargement of liver and spleen, thus causing abdominal swelling. From the appearance of thalassemia, it is obvious that the appearance of children with thalassemia has other characteristics, which are not specific, and should be taken seriously, so please bring your baby to the hospital in time, and make positive diagnosis and treatment to avoid delaying the condition.