Self-concealment

Self-concealment is a psychological construct defined as "a predisposition to actively conceal from others personal information that one perceives as distressing or negative".[1] Its opposite is self-disclosure.[1][2]

The concealed personal information (thoughts, feelings, actions, or events) is highly intimate, negative in valence and has three characteristics: it is a subset of private information, can be consciously accessed, and is actively concealed from others. Self-concealment significantly contributes to negative psychological health.