Carlo Ginzburg John Tedeschi Anne C Tedeschi

A caul is a thin membrane of amniotic tissue that can cover a newborn's head during birth, occurring in fewer than 1 in 80,000 births. This phenomenon, distinct from an en-caul birth where the entire amniotic sac envelops the infant, has been the subject of diverse cultural beliefs and superstitions. Historically, being born with a caul was often considered a sign of good fortune, destined greatness, and a protective charm, particularly against drowning, making cauls valuable talismans, especially for sailors. Various cultures developed idioms and phrases to describe individuals perceived as exceptionally lucky due to this birth attribute. However, not all traditions viewed cauls positively, with some Romanian folklore associating them with becoming a strigoi (undead creature) after death or a predestined fate of execution. The caul is typically removed shortly after birth, a process that can range from simple to complex depending on the membrane's thickness, with care taken to avoid harming the infant.

While often steeped in folklore, modern medical understanding acknowledges that en-caul births, particularly in premature infants delivered via C-section, might offer some protective benefits by shielding the underdeveloped fetus from external trauma during delivery. Despite its rarity and the fading of some ancient superstitions, the concept of the caul and its associated mystique continues to appear in literature and popular culture, often symbolizing inherent luck or special abilities.

A caul is a piece of fetal membrane, typically a portion of the amnion, that can cover a newborn's head and face at birth. This occurrence is rare, happening in less than one out of every 80,000 births. An 'en-caul' birth is a distinct event where the infant is born entirely encased within the unbroken amniotic sac, sometimes referred to as a 'mermaid birth.' While a standard caul is a partial covering, an en-caul birth involves the entire sac. The amnion is the inner membrane enclosing the fetus and amniotic fluid, while the chorion is the outer membrane contributing to the placenta. The most common type of caul consists of the thin, translucent inner lining of the amnion that adheres to the baby's head and face.

The caul itself is harmless and is typically removed by a parent, physician, or midwife soon after birth. Removal of the amniotic membrane is usually straightforward, involving gently slipping it away from the infant's skin. However, if a thicker membrane is present, the process requires more care. A small incision may be made to allow the infant to breathe, and the membrane is then carefully peeled or rubbed away. Swift or improper removal can potentially cause minor wounds or scars. In contemporary obstetrics, particularly with premature births via Cesarean section, research has explored the potential benefits of delivering infants while still en-caul, suggesting the intact sac may offer protection to the underdeveloped fetus during delivery.

Historically, the caul has been imbued with significant folklore and superstition across various cultures. In medieval times, it was widely regarded as a potent symbol of good luck and a harbinger of a destined great future for the child. The ritual of collecting the caul on paper was a common practice, with the membrane preserved as a cherished heirloom. Furthermore, cauls were believed to grant their bearers protection from drowning, making them highly prized by sailors who would often purchase them for substantial sums. This belief is reflected in numerous cultural idioms across Europe, such as the Italian 'nato con la camicia' (born with a shirt) or the Russian 'родился в рубашке' (born in a shirt), all signifying exceptional luck. Conversely, some Romanian traditions associated caul births with becoming a malevolent spirit after death or a predestined fate of execution rather than drowning.

The mystique surrounding caul births has led to their frequent appearance in literature and popular culture, often symbolizing innate luck or supernatural abilities. Charles Dickens' 'David Copperfield' famously features the protagonist being born with a caul that is advertised for sale as a talisman against drowning. Similarly, Peter Carey's 'Oscar and Lucinda' and Barbara Kingsolver's 'Demon Copperhead' incorporate caul births with associated superstitions. The concept also extends to other media, appearing in films like 'The Shining' and television series such as 'See' and 'The Strain,' where the caul is sometimes linked to clairvoyance or protective powers. Even the name 'Holden Caulfield' from J.D. Salinger's 'The Catcher in the Rye' is seen by some as a subtle nod to this tradition.

“I was born with a caul, which was advertised for sale, in the newspapers, at the low price of fifteen guineas.”