Fig. 5From: Pictorial methods to assess heavy menstrual bleeding in research and clinical practice: a systematic literature reviewExamples of menstrual tampon shapes after addition of fluid. Anti-leak features of each tampon type are shown. When wet, o.b. ProComfort tampons swell radially to form a barrel shape, Tampax Cardboard tampons enlarge axially with minimal radial expansion and Tampax Pearl tampons expand to produce a winged profile. o.b. ProComfort tampons, Edgewell Personal Care, St Louis, MO, USA; Tampax tampons, Proctor & Gamble, Cincinnati, OH, USABack to article page