This thesis is about a General overview of Chronic Urticaria and it's different subtypes, It also includes Diagnosis, differential diagnosis and treatment of this chronic illness. Chronic Urticaria is a disease defined as the presence of wheals/ hives Or angioedema Or both for a period that spans more than 6 weeks. This works dives into the sub-classification of Chronic urticaria such as Chronic spontaneous urticaria and Chronic inducible urticaria with it's many sub-types including: Cold, heat, pressure, cholinergic and dermographism ( Urticaria factitia). It also includes the role of genetics, it's etiology and different factors that influences the disease. with an end summary on most used treatment for this chronic illness including first line - third line treatment and immerging/ possible new treatment's that patients can course through while having this condition