China's largest sperm bank, in Changsha, Hunan province, has in all stored 250,000 samples of semen and produced more than 40,000 tube babies.

Reproductive and Genetic Hospital of Citic Xiangya, has been founded for about ten years. Currently, it has stored more than 100,000 samples of semens and the gravidity of tube babies reaches 50.14 percent. It has provided sperms to 23 cities and provinces and cities and offers technique instructions to 45 reproductive centers.