According to The Catechism of the Catholic Church in paragraphs 1514-1515, the Anointing of the Sick "is not a sacrament for those only who are at the point of death. Hence, as soon as anyone of the faithful begins to be in danger of death from sickness or old age, the fitting time for him to receive this sacrament has certainly already arrived."  One can also receive this sacrament prior to surgery.

It goes on to say:  "If a sick person who received this anointing recovers his health, he can in the case of another grave illness receive this sacrament again. If during the same illness the person's condition becomes more serious, the sacrament may be repeated. It is fitting to receive the Anointing of the Sick just prior to a serious operation. The same holds for the elderly whose frailty becomes more pronounced."

The Catechism reports in paragraph 1532 the following effects from the special graces received after being anointed:

• the uniting of the sick person to the passion of Christ, for his own good and that of the whole Church;
• the strengthening, peace, and courage to endure in a Christian manner the sufferings of illness or old age;
• the forgiveness of sins, if the sick person was not able to obtain it through the sacrament of Penance;
• the restoration of health, if it is conducive to the salvation of his soul;
• the preparation for passing over to eternal life.