Benefits of egg freezing
Women who plan to have children after they are 35 years old can make use of egg freezing to store their eggs for later use.
A woman is born with a certain number of eggs, but the number decreases over time. The quality of a woman's eggs also declines as she ages.
Egg freezing allows a woman to store her eggs when they are at their optimal quality.
Dr John Wilcox from the Huntington Reproductive Center in US, said: "By the mid 30s and early 40s, a woman's chances of getting pregnant using her own eggs dramatically decreases to less than 10 per cent.
"When a woman freezes her eggs, for example, (at) around the age of 31, she can be assured that the eggs she is storing are the most viable eggs she'll ever have."
To prevent damage to the egg, the process removes most of the water from the eggs and protects them to prevent ice crystals from forming inside the eggs. The eggs can usually be stored for up to 10 years.
When a woman is ready to have a baby, her egg is thawed and injected with sperm. It is inserted into her uterus, allowing her to become pregnant.
However, in Singapore, social egg freezing is illegal. The procedure is allowed here only for medical reasons.