1. High success rate: compared with other countries in the world, the successful delivery rate of IVF in the United States is higher than other countries
2. Mature technology: it has the most advanced IVF technology in the world.
3. Some lenient policies such as allowing IVF to choose between male and female and to have multiple births are allowed.
4. Have advanced medical equipment for IVF.
Of course, his cost is also higher