Retrospective data of over 182,000 births, with the statistical power to determine even mild associations, suggest that a single or multiple<unk> s at the time of delivery is not associated with adverse perinatal outcomes, is associated with higher birthweights and fewer caesarean sections in births. Although some studies have found that a tight<unk>  is associated with short term morbidity, it is unclear whether such outcomes are actually a result of the presence of the<unk>  itself, or as a result of clamping and cutting the cord
Nuchal cord
Perinatal asphyxia
Posterior cord
Oblique cord
Rhomboid fossa
Medial cord
Nicomachus 
Adina