Important medical information about conditions that may affect the timing or safety of Brit Milah.
Neonatal jaundice is one of the most common reasons a Brit Milah may be delayed. Jaundice occurs when there is excess bilirubin in the blood, causing the baby's skin and whites of the eyes to appear yellow. It affects up to 60% of full-term newborns and is usually harmless, resolving within 1–2 weeks.
Jewish law prohibits performing a Brit Milah on a jaundiced baby. This is actually a remarkable example of ancient wisdom anticipating modern medicine — elevated bilirubin can interfere with clotting and increase surgical risk. Once the jaundice resolves and the baby's bilirubin levels are in the normal range (typically confirmed by a pediatrician), the bris can be rescheduled.
When jaundice is the reason for delay, the bris is rescheduled for seven full days after the jaundice completely clears — not performed on Shabbat or holidays.
Certain inherited bleeding disorders require special consideration before a Brit Milah:
Hemophilia is a genetic condition in which the blood lacks sufficient clotting factors (Factor VIII in Hemophilia A, Factor IX in Hemophilia B). Infants with hemophilia can still have a Brit Milah, but it requires advance planning — coordination between the mohel, a pediatric hematologist, and often a hospital setting with factor replacement therapy available. The procedure is not simply delayed; it requires specialized preparation.
Von Willebrand disease (VWD) is the most common inherited bleeding disorder. Depending on the type and severity, circumcision may be performed with prophylactic treatment (such as DDAVP or factor concentrates) under medical supervision. Consult with a hematologist before scheduling.
If there is any family history of excessive bleeding following circumcision, surgical procedures, or dental extractions — in brothers, maternal uncles, or other close relatives — inform your mohel and pediatrician before scheduling the bris. A blood panel may be recommended.
Premature babies (born before 37 weeks gestation) are not circumcised on the eighth day. Jewish law requires that the baby be healthy and stable before the procedure can be performed. In practice, premature infants are not circumcised until they have been discharged from the NICU, are gaining weight appropriately, and are considered medically stable by their neonatologist and pediatrician. There is no set gestational age threshold — it depends on the individual baby's health status.
When a premature baby is finally ready for Brit Milah, the bris is performed on a day chosen in consultation with the medical team, but not on Shabbat.
Hypospadias is a congenital condition in which the urethral opening is located on the underside of the penis rather than at the tip. In cases of hypospadias, circumcision is typically not performed at birth or on the eighth day. The foreskin tissue is often needed by surgeons for the corrective repair procedure. Parents should inform their mohel and consult with a pediatric urologist before proceeding. Most rabbinical authorities agree that a bris is not obligatory when surgery requiring the foreskin tissue is planned.
Any systemic illness — fever, respiratory infection, or other acute illness — is grounds for delaying the Brit Milah. A sick baby cannot undergo elective surgery. Once the baby has recovered and remained healthy for a full seven days, the bris may be rescheduled. Always consult your pediatrician if the baby is unwell in the days approaching the scheduled bris date.
Certain anatomical variations — such as a webbed or buried penis — may require evaluation by a pediatric urologist before circumcision to ensure the procedure can be performed safely and with a good cosmetic outcome. A skilled mohel will assess anatomy prior to the ceremony and will communicate transparently with the family if any concerns arise.
After the Brit Milah, contact your mohel or pediatrician immediately if you notice:
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