Hereditary angioedema (HAE) is a rare genetic disorder characterized by recurrent episodes of severe swelling, typically affecting the face, extremities, gastrointestinal tract, and airway. These unpredictable attacks can be life-threatening, particularly when they involve the throat, leading to airway obstruction. HAE is primarily caused by deficiencies or dysfunctions in the C1 esterase inhibitor, a protein that helps regulate inflammation and fluid balance. Advances in hereditary angioedema medicine have introduced a range of treatment options, including preventive therapies, acute attack management, and novel therapies like targeted medications that address the underlying causes of the disorder. Ongoing research continues to enhance understanding of HAE, improving treatment strategies and ultimately aiming to enhance the quality of life for those affected by this challenging condition.