How are twins formed?

Lead: Why do twins appear? How did that come about? Let me have a look with you.

How are twins formed? 1, identical twins

Identical twins refer to a mother who expels an egg in an ovulation cycle and combines with sperm to form a fertilized egg.

Under this condition, this fertilized egg splits into two fertilized eggs with the same genetic information, and these two fertilized eggs develop into two fetuses respectively.

Because the genetic information of the mother carried by the two fetuses is almost identical, that is, they share the same gene, so the twins born after birth have the same sex, similar appearance, the same blood type and physique, and are usually called true twins? .

2. Dizygotic twins

Twins twins are caused by certain conditions. The mother excretes two eggs in an ovulation cycle, and the two fertilized eggs are fertilized separately, and then develop into two fetuses respectively. These two eggs can be discharged from the same mature follicle, from two mature follicles of the same ovary, or from two mature follicles of two ovaries. Because the eggs at the beginning of twin formation are discharged by the mother in the same cycle and carry slightly different genetic information, the two fertilized eggs of twins are different, and the two fetuses have their own genetic genes. Fetuses may have the same sex and blood type, or they may be different. They look similar to ordinary brothers and sisters and are often called false twins? .

How can I conceive twins 1 and folic acid?

The study found that women who take folic acid are nearly twice as likely to have twins as women who don't take folic acid. Among 2569 pregnant women who took folic acid, 2.8 out of every1000 children were twins, while among pregnant women who did not take folic acid, the ratio was 1.5. Experts estimate that folic acid supplementation may increase the number of ovulation, so that multiple eggs enter the uterus, thus giving birth to twins.

2. Sweet potato

You can refer to the Yoruba women in Nigeria, a West African country, to eat more sweet potatoes. Because sweet potato contains a substance similar to estrogen, it helps to have children. Statistics show that the Yoruba people have the highest probability of having twins in the world.

3. clams

Gecko contains high levels of androgen. Clam, especially its tail contains high levels of androgen, which can stimulate and regulate female gonadal axis to some extent, but it may also increase female ovulation. If a woman is pregnant while taking clams, the fetus is prone to twins or multiple births.

4, ovulation drugs

Take ovulation drugs to promote follicular development. Take clomiphene citrate on the fifth day of menstruation for five consecutive days. After taking this medicine, the ovulation rate reaches about 80%, but the pregnancy rate only reaches 30-40%. The specific reason is not clear. After taking the medicine, it is suggested to do a B-ultrasound examination around the first 12 day of menstruation to see how many follicles there are. If there are two, they are probably twins, but things are not absolute.