Genetic diseases are certainly frightening. However, if preventive measures are taken early on, their harm can be relatively reduced. Genetic diseases can develop as early as during the embryonic stage or when the sperm and egg combine. When choosing a partner or considering reproduction, it is important to think about how to prevent genetic diseases, which is also an important aspect of achieving eugenics.
Avoid dating individuals who have the same genetic disease and prevent marriages between people with the same genetic disease. Marrying between such patients significantly increases the chances of their children having the same genetic disease as their parents, such as primary hypertension, atherosclerosis, diabetes, congenital heart disease, myasthenia gravis, spina bifida, cleft lip, congenital hip dislocation, congenital asthma, congenital deafness and muteness, and high myopia.
Avoid consanguineous marriages, as the incidence of recessive genetic diseases in the offspring of consanguineous marriages will be significantly higher than that in the general population. Research results have shown that the likelihood of offspring having genetic diseases increases when born to parents with various severe diseases. Patients with viral hepatitis, tuberculosis, sexually transmitted diseases, and other severe organic diseases should also not rush into marriage.
Select the right time for conception. The age of both spouses should be appropriate. If the woman is over 35 years old, the chance of having a child with congenital mental retardation can increase by about 10 times. It is best for the man to not exceed 50 years old.
Pay attention to the "external environment" in which both the man and woman are in during conception. For example, if they are in close contact with toxic substances (such as undergoing radiation therapy or spraying pesticides), or if they are taking a drug that can cause harm to the embryo, they should not conceive immediately. They should wait for some time after avoiding harmful external environments before trying to get pregnant.
If there have been two or more consecutive miscarriages, chromosome testing should be conducted to determine if it is related to genetic factors. The decision to conceive again should be made by a doctor.
For women who have had a previous abnormal fetus, a comprehensive examination by a doctor must be conducted before considering another pregnancy to determine the cause of the abnormal fetus and decide whether to conceive again.
