Sakudaira Angel Clinic
Sakudaira Angel Clinic
To make as many patients happy as possible
We help foreign patients who need special reproductive medicine techniques, such as egg donation, sperm donation, surrogacy, gender selection treatment, etc., to fulfill their wishes.


We are a reproductive medicine clinic that provides advanced reproductive medicine including in vitro fertilization. Since its opening in April 2014, we have supported many infertility patients with our advanced reproductive medicine techniques. We are starting to offer special reproductive medicine techniques such as “egg donation treatment,” “sperm donation treatment,” “surrogacy support,” and “high-precision gender selection treatment,” mainly for Chinese (and for other nationalities) couples living in Japan and other foreign countries.

This site provides information for non-Japanese speaking patients who wish to receive special reproductive medicine (egg donation treatment, sperm donation treatment, surrogacy, gender selection treatment).

Sakudaira Angel Clinic
Teppei Masai MD

Egg donation

Generally, the eggs are donated by an egg donor, and in vitro fertilization is performed with the husband’s sperm. The fertilized eggs are then implanted in the uterus of the woman who wishes to become a mother, and the treatment is designed for her to conceive and give birth to a child on her own.


When a woman who wishes to have a child cannot conceive and give birth using her uterus for some reason, this treatment method allows her to have a child by implanting a fertilized egg between her husband and his wife (or egg donor) into the uterus of a surrogate mother, a third-party woman, and requesting her to give birth to the child.

Sperm donation

This treatment method can be considered when the husband has been diagnosed with azoospermia, and the intra-ovarian sperm retrieval procedure has failed to retrieve sperm, or has failed to retrieve valid sperm for subsequent ICSI.

Gender selection

“Gender selection” means taking measures for couples who wish to have a child of either gender to have a child of the desired gender by using some method. We use MicroSort® as our sperm selection method.

How to make an appointment

  • Consultations are by appointment only.
  • Please make your first appointment by phone or web appointment.

If you have any questions about our treatment methods, policies, or anything else, please feel free to contact us.