Should It be a concern that after having penetration a second time you bleed again?

Okay so, I already knew that when someone has sex for the first time, they are supposed to bleed because they have just lost their virginity. So my questions is, if you did bleed just like you were supposed too after your first time. How come when you have penetration again, lets just say ( a few days later) after you've tried it again and have had penetration once more, you bleed again ? What does this mean ? Is it bad ? Should It be a concern that after having penetration a second time you bleed again ????