In adolescents and young adults, inflammatory bowel disease, particularly ulcerative colitis, is a serious cause of haematochezia that must be considered and excluded.
During heat waves, for instance, there is usually an excess mortality rate in the population, affecting especially older adults and those who are sick.
Presentation varies slightly compared to adults with bilateral involvement, uveitis, disc edema and tissue eosinophilia being more common in this population.