When is the bris delayed because the baby is yellow?

When a baby appears to be ill, we do not perform the bris until he recovers. The Rambam explains that matters of danger override everything, because a bris can always be done later, but a life cannot be restored once lost.¹

Shulchan Aruch distinguishes between two categories of illness. If the baby has a general illness affecting his whole body (e.g., fever), we wait until he recovers and then count an additional seven complete (24-hour) days before the bris. If the illness is localized to one limb or one area (e.g., eye ailment), the bris may be done as soon as he is healed.² If a baby is underweight and there is no broader medical issue, the bris is delayed only until he reaches the appropriate weight.³

One of the most common reasons for postponing a bris is jaundice. Chazal already noted that milah can be dangerous for a baby who appears yellowish, and the Shulchan Aruch codifies this concern.⁴

Jaundice reflects elevated bilirubin in the blood, often because the liver is functioning less efficiently in the newborn period, but it can also indicate illness or other medical issues. Doctors evaluate jaundice by checking the bilirubin level, but halacha also pays close attention to the baby’s appearance and overall condition. A baby with mild jaundice that is already peaking and beginning to improve may be treated differently from a baby whose jaundice is still rising.

At certain levels, the bris is postponed until the jaundice clears, and at higher levels, the baby is treated as having a more serious whole-body condition, requiring a full seven days after recovery.⁵

Halacha views jaundice more strictly than the medical assessment of the baby’s condition by the mohel.⁶

Poskim discuss a baby who seems well but is still receiving medication. Some are more lenient, while others maintain that active treatment itself is a reason to delay the bris.⁷

When there is any real concern that a baby is not fully healthy, we delay the bris until he is ready.

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