The means by which God forgives sins after baptism is confession: "If we confess our sins, he is faithful and just, and will forgive our sins and cleanse us from all unrighteousness" (1 John 1:9). Minor or venial sins can be confessed directly to God, but for grave or mortal sins, which crush the spiritual life out of the soul, God has instituted a different means for obtaining forgiveness—the sacrament known popularly as confession, penance, or reconciliation. Since it is not possible to confess all of our many daily faults, we know that sacramental reconciliation is required only for grave or mortal sins—but it is required, or Christ would not have commanded it. (http://www.catholic.com/library/Confession.asp) So, what is a "grave" or "mortal" sin? Well, there's not a "checklist", it's a little more subjective than that. Generally speaking, a "mortal" sin meets the following criteria: 1. Subject must be ‘grave matter’. 2. It must be committed with full knowledge. 3. It must be committed with deliberate and complete consent. (http://www.newadvent.org/cathen/14004b.htm#III)

According to the Roman Catholic Church you are supposed to confess once a week, because you are suppose to go to Church and have communion at least once a week, and for the latter you need to be free-of-sin. Sins that you are abliged to confess are many and are clasified in different categories: -Sins against commandments (10): like lying, stealing, using God's name in vain, be disrespectful with your parents and so on. -Capital or Deadly Sins (7): Gluttony, Wrath, Envy, Sloth, Greed, Pride and Lust. The only sins not supposed to be confessed, that you can reconcile with pray are "venial sins", this means: -We violate divine law with full or partial knowledge and consent. -We disobey an objectively grave precept but due to invincible ignorance we think the obligation is not serious. According to John: 1 Jn 5:16 "There is sin which is mortal … All wrongdoing is sin, but there is sin which is not mortal." So in conclusion, you are supposed to confess all wrong-doing you are aware of. If you commit a sin without knowledge, or you are not aware for ignorance, you are of course not obliged.

All of them. I grew up catholic.

Catholics should receive the Sacrament of Reconciliation whenever he or she has completely cut oneself off from God (in the state of mortal sin) and at least as once a year. Catholics may receive the Sacrament of Reconciliation whenever he or she feels that they need to be reconciled to God and the Church. For more information, see the Catechism of the Catholic Church, section 1422 and following: http://www.usccb.org/catechism/text/pt2sect2chpt2.shtml With love in Christ.

We may confess venial sins, Which are sins that will not bar us from heaven if we fail to confess them. We must confess mortal sins which put the existence of our very soul in danger of confinment to hell if not confessed, these are sins that deny our promises at baptism and, actively work to destroy the salvation of ourselves or others. A violation of the major sins in the 10 commandments like murder, adultery, denial of the holy ghost. here is a direct link to the official catechism which explains the difference quite clearly http://www.scborromeo.org/ccc/p3s1c1a8.htm

All of them. We've always been told confession is like cleaning your soul. You go in, and you come back out all new, and void of all your sins. A priest once told me that a man came out doing cartwheels, just because he felt so amazing. Yeah, I know... It could be true. Aha. If I go to the convent with school or that, too, confession can just be like a chat with the priest, on your own.

A Catholic may go to confession for any sin, or feeling of guilt they want to get off their chest. But are only required to go for grave sins, like going against one of the 10 commmandments.

Anything and everything but don't worry, with a $10 donation and 3 Hail Marys, everything goes away and you get a clean slate to do it all over again with inpunity

the one's that you were caught doing. Other wise it's a free pass.

You need to confess all sins and it isn't a free pass. If you don't truely repent then the sins are still carried with you. Just saying the words don't count. ------------------------------------------- Anything and everything but don't worry, with a $10 donation and 3 Hail Marys, everything goes away and you get a clean slate to do it all over again with inpunity --------------------------------------- This is a absolute nonsense that all non-catholics seem to believe whereas a little research will give you the correct answer.

any sin that bothers you and you wonder if you will ever be forgiven.

All the sins from which you still have to be freed. This does not include the sins from which you have been already freed through a former confession, or all those committed before baptism, from which you were already freed through baptism. "In Roman Catholic teaching, the Sacrament of Penance (commonly called Confession, Reconciliation or Penance) is the method given by Christ to the Church by which individual men and women may be freed from sins committed after receiving Baptism. (It is not necessary to confess sins committed before baptism, as baptism itself is considered to remove the guilt of all prior sins.) This sacrament is known by many names, including penance, reconciliation, and confession (Catechism of the Catholic Church, Sections 1423-1442). Official Church publications of the Latin-rite always refer to the sacrament as "Penance," or "Reconciliation" or "Penance and Reconciliation." However, many lay Catholics continue to use the term "confession" in reference to the sacrament." "In order for the sacrament to be valid the penitent must do more than simply confess his known mortal sins to a priest, who has faculty to absolve, and if a reserved sin have the special faculty to absolve it.[5] He must a) be truly sorry for each of the sins he committed, b) have a firm intention not to commit them again. Also, in addition to confessing the types of mortal sins committed, the penitent must disclose how many times each sin was committed, to the best of his/her ability." "In the Middle Ages the manuals of confession constituted a literary genre. These manuals were guidebooks on how to obtain the maximum benefits from the sacrament. There were two kinds of manuals: those addressed to the faithful, so that they could prepare a good confession, and those addressed to the priests, who had to make sure that no sins were left unmentioned and the confession was as thorough as possible. The priest had to ask questions, while being careful not to suggest sins that perhaps the faithful had not thought of and give them ideas." Source and further information: http://en.wikipedia.org/wiki/Sacrament_of_Penance_(Catholic_Church%29