Dr. Terumi Hayashi

About

Dr. Terumi Hayashi graduated from Hyogo College of Medicine and trained in its obstetrics and gynecology department, followed by posts at Takarazuka Citizen’s Hospital, Shinsan County National Hospital and Kobe Adventist Hospital. Her surgical formation came under Dr. Kenichiro Ikuma, a recognized pioneer of laparoscopic gynecologic surgery in Japan, where she performed a high volume of keyhole procedures — including a reported laparoscopic vaginoplasty using the sigmoid colon for congenital vaginal agenesis (source: official clinic staff profile).

She joined Oak Clinic Sumiyoshi in 2005 and has led the clinic as its medical director since September 2024 (source: corporate profile of Medical Corporation Oak). Her research interests connect surgery and reproduction directly: she published work showing that a single curettage endometrial biopsy in the proliferative phase improves reproductive outcomes — a line of investigation relevant to recurrent implantation failure.

Clinical Expertise

• Laparoscopic reproductive surgery: endometriosis, adhesiolysis and uterine/pelvic pathology treated with minimally invasive technique
• IVF and ICSI cycle management: stimulation design through transfer within the Oak Clinic’s individualized protocol system
• Recurrent implantation failure (RIF): endometrial-focused evaluation and intervention strategies informed by her published biopsy research
• General infertility care: ovulation disorders, tubal factors and uterine conditions

Why Choose Dr. Terumi Hayashi

Dr. Hayashi offers the combination few fertility patients find in one physician: deep operative laparoscopy training from one of Japan’s pioneering surgical mentors, plus twenty years of day-to-day IVF practice as the clinic’s medical director. For patients whose roadmap may involve both surgery and embryo transfer, that continuity shortens decision loops — the surgeon and the ART physician are the same person. Her leadership role also means clinic protocols are shaped directly by her experience with complex and repeat-failure cases.

Professional Affiliations

• Reproductive Medicine Specialist and Instructor, Japan Society for Reproductive Medicine (JSRM)
• Board-certified Obstetrician and Gynecology Specialist, Japan Society of Obstetrics and Gynecology (JSOG)
• Member, Kinki Society for Gynecologic Endoscopic Surgery
• Certified physician under the Maternal Health Law

Suitable For

• Recurrent implantation failure: assessment of uterine and endometrial factors, with biopsy-based strategies backed by her own published outcomes research
• IVF patients who may need surgery: endometriosis or pelvic pathology handled by a surgeon-reproductive specialist rather than referred out
• Endometrial-factor infertility: systematic evaluation of the uterine lining as part of individualized cycle planning