The Cures of Lourdes
The healings reported at the Lourdes shrine, of which the Church has recognized dozens as medically unexplained.
Lourdes, in southern France, is the site of the 1858 apparitions of the Virgin Mary to St. Bernadette Soubirous, and has since become one of the most visited pilgrimage shrines in the world, drawing several million pilgrims each year and known especially for reported healings.
What happened
Over the eighteen apparitions of 1858, Bernadette was directed by the Lady to a spot in the grotto of Massabielle where, after she scratched at the ground, a spring emerged. Pilgrims soon began bathing in and drinking the water, and reports of unexpected cures followed. In the decades since, many thousands of claimed healings have been brought to the shrine.
How the cures are examined
Uniquely among shrines, Lourdes maintains a rigorous and deliberately skeptical process, open to physicians of any faith or none. A claimed cure is first studied by the Lourdes Medical Bureau, which gathers the medical record and tests whether the healing was sudden, complete, lasting, and without medical explanation. Cases that survive this scrutiny are referred to the International Medical Committee of Lourdes for further review. Even then, the medical finding is deliberately modest: the committee certifies only that a cure is medically unexplained. Whether to call it miraculous is a separate judgment, reserved to the healed person's own bishop.
That division of labor is the key to understanding the claim. The doctors do not pronounce on the supernatural, and the Church does not ask them to; medicine says only what it can honestly say, that it has no explanation, and the theological judgment is made elsewhere, on its own grounds.
The results
Millions have come and a great number of cures have been claimed, yet after this severe filtering the Church has formally recognized only around 70 as miraculous. The small proportion is itself part of the point: the process is built to weed out the ordinary, the psychosomatic, the misdiagnosed, and the merely premature, so that what remains has already passed a demanding test.
Why it matters
Lourdes offers a striking example of the Church subjecting reported healings to independent medical scrutiny rather than assuming them. The recognized cures are presented as signs of God's mercy, while the shrine's deeper work is quieter and larger: the consolation of the sick and suffering who come in their millions, most of whom are not cured in body and yet return home changed.