Labial hypertrophy is a condition where one or both labia (vaginal lips) are larger than normal.
The labia have outside skin folds (labia majora) and inner skin folds (labia minora).
While labial hypertrophy can affect the size of both the inner and outer folds, it typically changes the appearance of the labia minora. If this occurs, the inner folds extend past the outside folds in over 50% of women and girls.
There is no reported “normal size,” but typically they are thought to be enlarged if >4-5 cm per side.
Symptoms of labial hypertrophy can include:
The exact cause of labial hypertrophy is unknown. Some physicians credit it to natural variations in the body. Some girls are born with enlarged labia, and others may develop hypertrophy over time.