Inserting a finger into the vagina can cause the hymen to rupture if it is done improperly or with too much force. Whether or not the hymen will be ruptured after the finger enters the vagina is mainly related to the size of the hymen hole, the extent of finger entry and the direction of finger entry. If the hymen hole itself is small and more fingers enter with improper force, it may cause the hymen to rupture. Generally the hymen is thin and some women do not bleed or even feel too much pain after the hymen rupture. Once bleeding or painful discomfort occurs, medical attention should be sought if necessary. However, if the hymen hole is large and the finger enters the vagina slowly along the hymen hole and does not go deep enough, it may not cause the hymen to rupture. It is advisable to avoid entering the vagina with your finger to avoid gynecological inflammation due to lack of hygiene. If you do use your finger to enter the vagina, you should pay attention to good hand hygiene and be gentle.