What diseases will affect the visa for Australian parents' immigration physical examination?

As long as it is not an infectious disease, it will not affect the visa. For example, hypertension and heart disease in the elderly have no effect on visas. Don't worry, that's all I know, and the rest is not clear. Why not ask questions at the immigrant's home (domestic visa)? These are all introductions. Many friends go there to ask questions and communicate with each other. You can go and have a look. It will definitely help you.