Five genetic diseases that are passed down to boys but not girls

If a man suffers from a genetic disease, will it be passed on to the next generation? In fact, it is not certain. Here we will introduce five genetic diseases that are passed on to males but not females. If a man suffers from these five genetic diseases, it is not suitable for him to have a boy.

1. Hemophilia

The patient's blood lacks an important coagulation factor, antihemophilic globulin. When traumatic bleeding occurs due to various reasons, the blood cannot coagulate and the patient eventually dies from excessive bleeding. This protein is now available in large quantities, which has greatly reduced the mortality rate.

2. Pseudohypertrophic muscular dystrophy

The disease usually occurs around 4 years old, usually not exceeding 7 years old. The thigh muscles atrophied, the calves became thick and weak, the walking posture was like a duck, and he gradually became paralyzed after a few years. Most patients die around the age of 20. There is currently no effective treatment.

3. Favism

It is an acute hemolytic anemia caused by eating broad beans. Because the patient's body lacks glucose-6-phosphate dehydrogenase, the stability of the red blood cell membrane is poor. Favism can occur at any age, but is more common in children under 9 years old. Generally, the disease occurs 1-2 days after eating broad beans. In mild cases, the patient can recover within a week as long as they stop eating broad beans. In severe cases, the patient will suffer from severe anemia, yellowing of the skin, enlarged liver and spleen, and soy sauce-colored urine. In even more serious cases, the patient may die. According to statistics, 90% of patients with favism are male. Some of them take primaquine, aspirin, sulfonamide drugs, etc., and develop hemolytic anemia, which is a genetic disease with the same cause as favism.

4. Red and green color blindness

Since this disease is not life-threatening, the possibility of both husband and wife carrying the disease-causing gene is greater. In this way, the next generation of females has the possibility of getting an X chromosome with the disease-causing gene from each parent, thus showing symptoms. But according to statistics, the incidence rate in men is 14 times that in women. This disease can affect young people's choice of career and profession.

5. Congenital agammaglobulinemia, hereditary deafness, hereditary optic atrophy, etc. are also X-linked recessive genetic diseases

There is no specific treatment for these diseases, and the general prevention method is to avoid marriage between close relatives. Women with a family history of the above-mentioned genetic diseases or who have given birth to children with the disease should be diagnosed before pregnancy. Generally, only female fetuses are kept to avoid the birth of sick children that will bring burdens to the family and society.