People of any gender, age or ability can experience incontinence: they cannot hold on to their urine and/or faeces (‘the involuntary loss of urine or faeces’), and need to manage their urine and/or faeces leaking out. Leakage can occur at any time, day or night (commonly referred to in children as ‘bedwetting’).Members of an informal email group on incontinence in humanitarian and development settings* have identified a lack of acknowledgement and support for people with incontinence. In response the group has been developing tools and collating resources to enable development and humanitarian professionals to create a supportive environment for people in low- and middle-income countries to manage their incontinence hygienically, safely, in privacy and with dignity.We have identified that anyone who experiences incontinence has increased water, sanitation and hygiene (WASH) needs compared to the rest of the population.