A player is disqualified ("fouls out") after committing 5 personal fouls; Common personal fouls: blocking, charging, pushing, holding, hand-checking, illegal screen; Shooting fouls: 2 or 3 free throws depending on the foul location; and-one if the basket counts
Why people argue about this
People often assume that personal fouls just result in free throws for 1 point, forgetting that after five fouls a player is automatically disqualified. This oversight leads to arguments about whether a team should have more players on the court or if a coach's strategy was flawed due to their player being ejected early.