Hi, dear. I have gone through your question. I can understand your concern. If normal person marry the thalassemia major then there offspring become thalassemia minor. Thalassemia minor person should not marry other thalassemia minor. Because chances of thalassemia major child is there. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health.