Why do we ‘kink’ (break) the sperm tail? During the ICSI (Intracytoplasmic Sperm Injection) procedure, embryologists perform a tiny, deliberate move: we gently tap or “kink” the sperm’s tail right before injection. It might look strange, but it’s vital for success! This serves two major purposes: 1️⃣ Immobilization: A beating or active tail could physically damage the delicate egg (oocyte) structures during the microinjection procedure. Kinking the tail ensures the injection is smooth and contro