Objective: Study the human umbilical cord before and after the delivery is importance, because it is plays an essential role in the fetal
development. The aim of this work is to measure the umbilical cord length in term Sudanese neonates and to study the differences
in cord length, between singleton to twin birth and between neonatal genders. Materials and methods: length of 721 umbilical cords
of singleton and twin neonates was measured, in first 2 to 3 minutes after delivery, in Omdurman Maternity Hospital, Sudan, 2019.
Inclusion criteria: full term single and twins birth cases, of normal vaginal delivery, looked health neonates. Exclusion criteria: preterm
labor, triplets, quadruplets, caesarean sections deliveries and cord with true knot. The data was analyzed by using SPSS statistical
software version 20. Results and conclusion: the average length of the umbilical cord was about 68 cm in singleton and 47 cm in the
twin, being longer in males of single birth and in females of twin birth cases. Maximum length of the umbilical cord in singleton
neonates were 112 cm in male, 91cm in female, and in twin were 62 cm in male and 78 cm in female neonates. About 1.5% of cords
were shorter than 30 cm, 3.5% were longer than 90 cm and 95.0% were of normal length. 20 cm of the cord length is suitable for
fetus to be delivered vaginally.
Keywords: Umbilical cord length, in singleton and twin, Sudanese neonates