Embryo freezing, also known as cryopreservation, is a process that preserves embryos at very low temperatures. This technique allows embryos created through in vitro fertilization (IVF) to be stored for future use. By freezing embryos, individuals or couples can delay pregnancy while maintaining the potential for conception later on. The freezing process involves carefully cooling the embryos and storing them in liquid nitrogen. This method helps to prevent damage to the cells, ensuring that the embryos remain viable when thawed. Embryo freezing is commonly used for various reasons, including medical treatments, age considerations, or personal choice.