sentence: Painful crisis involves flank, back and thigh pains that can be relieved by treatment.
sentences_before: A milder and more frequent problem is 'painful crisis'.
sentences_after: A painful crisis may evolve into worse problems such as acute chest and other organ failures e.g. strokes, heart attacks. Both strokes and heart attacks are general problems which may happen in older people. But in sickle patients these can happen even in the young.
concept_name: painful crisis
headings: Sickle-cell disease The disease
categories: Diseases Genetic disorders Blood