Can microangiopathic disease be dangerous and what can it cause?

It can be: Dangerous if untreated and may affect vital organs esp.Heart, brain, eyes, kidneys, extremities etc causing heart attack, stroke, blindness, kidney failure, gangrene. Stay active, eat healthy, avoid smoking, have ur annual check up. Enjoy life! http://m.Wisegeek.Org/what-is-microangiopathy.Htm.

It depends: Microangiopathy (or microvascular disease, or small vessel disease) is an angiopathy (i.e.Disease of blood vessels) affecting small blood vessels in the body. It can be contrasted to macroangiopathy ( large vessel disease). Cerebral ( brain) and coronary (cardiac) small vessel disease are the examples. It depends how severe it is to cause problems. They are usually chronic in nature.

Vascular/hematologic: Depends on the source of the microangiopathy. If it is age/atherosclerosis there are progression risk reduction strategies such as blood pressure, lipid control. If you have a microangiopathic hemolysis, that requires a specialist and is an urgent matter that requires immediate evaluation and management.