Catholic guilt is an expression used to identify the reported excess guilt felt by Catholics and lapsed Catholics.
"Guilt" can be defined as remorse for having committed some offense or wrong, real or imagined. It is related to, although distinguishable from "shame", in that the former involves an awareness of causing injury to another, while the latter arises from the consciousness of something dishonorable, improper, or ridiculous, done by oneself. One might feel guilty for having hurt someone, and also ashamed of himself for having done so.
Philip Yancey compares guilt to the sensation of physical pain as an indication that something should not be ignored but attended to. Rabbi David Wolpe says, "Facing up to the hurt we cause others with cruel speech or callous acts, and to our myriad failures to meet the marks God sets for living a true and good life, "makes forgiveness meaningful, not merely a catchphrase,".
The Penitential Rite at the beginning of the Mass is a liturgical rudiment of this previously sacramental confession. This private confession became the normal way in which this sacrament was and is practiced, with a strict seal of secrecy on the part of the priest. Sometimes the practice of the sacrament emphasized doing acts of penance, sometimes it emphasized making one's sorrow or contrition authentic, sometimes it emphasized confessing all one's serious (mortal) sins, sometimes it emphasized the power of the priest, In Persona Christi, lto absolve the penitent of sin, and currently there are forms that include simply one-on-one confession to a priest or communal preparation and then one-on-one confession to a priest.
Guilt is an important factor in perpetuating Obsessive–compulsive disorder symptoms. Research is mixed on the possible connection between Catholicism and obsessive-compulsive symptoms. A study of 165 individuals by the University of Parma found that religious individuals scored higher on measures of control of thoughts and overimportance of thoughts, and that these measures were associated with obsessive-compulsive symptoms only in the religious participants. Another study noted a link between intrinsic religiosity and obsessive-compulsive cognitions/behaviors only among Catholic participants. However, a study from Boston University found that no particular religion was more common among OCD patients, and that OCD patients were no more religious than other subjects with anxiety. Religious obsessions were connected to the participants' religiosity, but sexual and aggressive symptoms were not. Greater religious devotion among OCD patients was correlated with increased guilt.