Egg freezing is a procedure that collects a woman's eggs and stores them frozen for future use. It gives the option of trying for a pregnancy later, using those eggs with IVF.
The process starts with hormone injections for around two weeks to stimulate the ovaries to mature several eggs at once. The eggs are then collected in a short procedure, usually under sedation, using a thin needle guided by ultrasound. Clinics freeze them quickly with a method called vitrification and store them until needed.
People freeze eggs for medical reasons, such as before cancer treatment that may affect fertility, or for personal reasons, such as wanting to delay having children. It is one form of fertility preservation.
Frozen eggs do not guarantee a baby. The age at which eggs are frozen matters most, because younger eggs tend to have better chances. Later, the eggs are thawed, fertilized in a lab and transferred as embryos through IVF. A fertility clinic can explain realistic success rates for each age group. For common misunderstandings, see fertility myths.
A cycle usually means several monitoring scans at short notice, then a day or two of rest around egg collection. Flexible hours and discreet time off for appointments help people manage treatment without extra stress.