One of the seven sacraments, also known as the "sacrament of the dying," administered by a priest to a baptized person who begins to be in danger of death because of illness or old age, through prayer and the anointing of the body with the oil of the sick. The proper effects of the sacrament include a special grace of healing and comfort to the Christian who is suffering the infirmities of serious illness or old age, and the forgiving of the person's sins (1499, 1520, 1523, 1526-1532).  From the Catechism of the Catholic Church referenced by the US Conference of Catholic Bishops

Please contact the Parish Office (email) at (281) 351-8106 to celebrate the sacrament prior to any surgery that will be performed; when an elderly loved one’s health is beginning to fail; and most especially if a loved is beginning to receive hospice care.