Yes, there are ways to avoid genetic and hereditary diseases. Through a method known as genetic counseling, the person is informed about the characteristics of the disease, the probability and the risk of developing or transmitting it, as well as the options for prevention and improvement of the condition.
This is a complex and important method, which must be done by a doctor who specializes in Clinical Genetics.
It is important to remember that every hereditary disease is genetic, but not every genetic disease is hereditary.
This means that hereditary diseases (passed from parents to children) are always due to some problem in the individual's genes, which favors the development of the disease.
Already the genetic diseases need not necessarily be inherited from the parents and may first arise in the family, as in Down's Syndrome.
In addition to genetic counseling, ways to make hereditary and genetic diseases less severe or at least under control.
For example, if the patient knows there is a family tendency to have high cholesterol or diabetes, he should have adequate eating habits to prevent the onset or worsening of the problem.
The same happens with all diseases that have a genetic or hereditary aspect, from allergies to cancer.
However, it is worth pointing out that the fact that someone tends to develop an illness does not necessarily mean that it will. The likelihood of these diseases manifesting also depends on the interaction with the environment and the habits of each one.
