When women think of using the yoni egg, the difficult thing they must determine is the right size for them. In reality, women have different shapes and sizes, and some of them are always changing with time. This means that a size that fits one woman will not fit the other woman, irrespective of their size and age. Therefore, when determining the right size for you, the best way is to consider maximum comfort when using the eggs. Basically, there are four different sizes available on the market. These sizes include large, medium, small and extra small. The best or the most suitable way of using yoni eggs is to use at least two eggs and preferably of different sizes simultaneously.