Male factor
What is ICSI and when is it used?
Medically reviewed by: Prof. Dr. Mehmet Çınar — Obstetrics & Gynecology, IVF and Reproductive Medicine SpecialistLast updated:
Short answer
ICSI (intracytoplasmic sperm injection) involves injecting a single selected sperm directly into a mature egg. It is used when sperm count, motility or morphology are reduced, when sperm has been retrieved surgically, or when previous cycles showed poor fertilisation.
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Related guidelines and sources
Official guidelines and institutional pages that describe the general framework behind this answer:
Please note: this answer is general medical information and does not replace diagnosis or treatment. Treatment decisions are made together with your physician after an individual assessment.