It can take decades for high cholesterol to have a bad effect on your health, although it still does damage even when you don't have or notice any symptoms.
If you have high cholesterol, and nothing is done to lower it, then you will be more at risk for serious medical problems later, such as a heart attack or stroke. Therefore, treatment for high cholesterol is an important issue for anyone's general health. If you have high cholesterol, you will need to take steps to fight it every day, just like you would brush your teeth to fight gum disease.
For most people, living with high cholesterol is a lifelong journey.