Hiroyasu Juen

About

Dr. Hiroyasu Juen graduated from the National Defense Medical College in 1983 and completed his initial residency at its affiliated hospital, building more than four decades of medical practice before specializing in reproductive medicine with the Sugiyama Ob-Gyn Clinic from 2009. He has 42 years’ experience as a physician and 16 years in fertility care, and works in clinic at Shinjuku on Mondays and alternate Saturdays.

A JSOG board-certified obstetrician-gynecologist with a PhD in Medicine, he focuses on ovulation induction, egg retrieval and embryo transfer procedures, hysteroscopic examination and the management of low AMH patients.

Clinical Expertise

• Ovulation induction and cycle monitoring
• Egg retrieval and embryo transfer procedures
• Hysteroscopic examination of the uterine cavity
• Treatment strategy for low AMH / diminished ovarian reserve
• Evidence-based planning adapted to each patient’s situation

Why Choose Dr. Hiroyasu Juen

With more than 40 years of clinical practice, Dr. Juen is one of the most senior physicians at Sugiyama Ob-Gyn Clinic Shinjuku, and his defining trait in the clinic’s own patient guidance is listening: consultations are deliberately unhurried, and he is particularly recommended for patients who feel unable to raise questions themselves — he leads the conversation until concerns surface. That makes him a strong fit for patients processing anxiety or grief alongside treatment. Behind the gentle style sits a solid procedural record in the two moments that decide an IVF cycle — retrieval and transfer — and a rigorous, evidence-first approach to protocol design for difficult low-reserve cases.

Professional Affiliations

• Board Certified Obstetrician and Gynecologist, Japan Society of Obstetrics and Gynecology (JSOG)
• PhD in Medicine

Suitable For

• Patients proceeding while organizing anxious feelings: step-by-step treatment with a doctor who gives space to talk
• Patients who want detailed communication: full explanations and Q&A time rather than rushed slots
• Patients who struggle to ask questions: a physician who proactively draws out concerns and options