The frequency of it could be the result of stress, bad sleeping position, malnutrition, type of dresses worn to sleep, erotic thoughts, excessive hand practice, to mention but a few. On the other hand, this problem when frequently experienced, especially in adults can be a serious health issue.
It is a natural phenomenon which is known to usually occur in adolescence age of 9 to 18.
These are used to describe situations, wherein people experience ejaculation involuntarily not induced by any external stimulus.
