Most common type of twin pregnancy is:

In twins most common lie of both the fetus at term is longitudinal. Rarest lie is both the twins transverse. Presentations Both vertex (Most common) 60% Vertex (Ist) – Breech (IInd) 20% Breech (Ist) – Vertex (IInd) 10% Both Breech 8-10% Note: Interlocking of twins is a rare complication seen in twins with Ist Breech presentation and IInd vertex presentation.