Anxiety is presented as a natural reaction to stressful and uncertain situations, such as humanitarian crises, which include armed conflicts, natural disasters or major economic problems. In the context of humanitarian crises, anxiety can be considered a progressive condition as it can evolve over time depending on the intensity and duration of the crisis. Anxiety disorders are highly prevalent in the general population, often comorbid with psychiatric disorders and medical conditions and associated with a negative impact on quality of life and a significant individual and economic burden. Factors that contribute to anxiety during humanitarian crises include lack of access to basic resources, for example food, drinking water and shelter, as well as the destruction of local infrastructure. Anxiety can also be fueled by loss of life, separation from family or friends, and the prospect of an uncertain future. The long-term effects of anxiety can have serious consequences for the mental and physical health of people affected by humanitarian crises, which underlines the importance of providing adequate psychological and social support in such situations. Anxiety is a common reaction during humanitarian crises and can become a progressive condition due to ongoing circumstances of stress and uncertainty. Recognizing and properly managing anxiety is essential to help affected individuals cope with and recover from these crises. People affected by such crises may experience anxiety as a result of uncertainty about the safety of themselves, their families and their communities. Anxiety disorders constitute a major clinical and public health problem. Keywords: Anxiety; humanitarian crises; mental health, anxiety disorders