A blood pressure cuff (10), for determining the blood pressure in newborns, includes a chamber section (20) with an air chamber (22) and a handling section (30) for placing and fastening the chamber section (20) around an arm (100) of a newborn. The air chamber (22) has a chamber wall (24), which has, along a circumferential direction (U) of the air chamber (22), a longitudinal sealing seam (40). Two longitudinal edges (26a, 26b) of the chamber wall (24) are connected to one another overlappingly opposite each other in an airtight manner by the longitudinal sealing seam (40).
