[{"n": "Acquired C1 esterase inhibitor deficiency", "u": "/e/urticaria-and-angioedema/acquired-c1-esterase-inhibitor-deficiency/", "s": "A rare, life-threatening angioedema linked to underlying disorders."}, {"n": "Adrenergic urticaria", "u": "/e/urticaria-and-angioedema/adrenergic-urticaria/", "s": "A rare urticaria subtype triggered by emotional upset and catecholamine release."}, {"n": "Aquagenic urticaria", "u": "/e/urticaria-and-angioedema/aquagenic-urticaria/", "s": "Hives develop after any water contact, regardless of temperature."}, {"n": "Capillary leak syndrome", "u": "/e/urticaria-and-angioedema/capillary-leak-syndrome/", "s": "A rare disorder causing episodic plasma leakage and circulatory shock."}, {"n": "Chronic spontaneous urticaria", "u": "/e/urticaria-and-angioedema/chronic-spontaneous-urticaria/", "s": "Chronic spontaneous urticaria causes recurrent hives and angioedema for over six weeks."}, {"n": "Cold urticaria", "u": "/e/urticaria-and-angioedema/cold-urticaria/", "s": "Hives triggered by cold exposure, with serious risks."}, {"n": "Dermatographic urticaria", "u": "/e/urticaria-and-angioedema/dermatographic-urticaria/", "s": "A common urticaria triggered by scratching or pressure on skin."}, {"n": "Dermatographism", "u": "/e/urticaria-and-angioedema/dermatographism/", "s": "A common urticaria triggered by scratching or pressure on skin."}, {"n": "Dermographism", "u": "/e/urticaria-and-angioedema/dermographism/", "s": "A common urticaria triggered by scratching or pressure on skin."}, {"n": "Episodic angioedema with eosinophilia", "u": "/e/urticaria-and-angioedema/episodic-angioedema-with-eosinophilia/", "s": "Rare episodic angioedema with eosinophilia and IgM elevation."}, {"n": "Hereditary angioedema", "u": "/e/urticaria-and-angioedema/hereditary-angioedema/", "s": "A rare genetic disorder causing recurrent, severe swelling episodes."}, {"n": "Kallikrein", "u": "/e/urticaria-and-angioedema/kallikrein/", "s": "Serine proteases regulating blood pressure, skin shedding, and semen liquefaction."}, {"n": "Mast cell-dependent urticaria", "u": "/e/urticaria-and-angioedema/mast-cell-dependent-urticaria/", "s": "A common urticaria triggered by scratching or pressure on skin."}, {"n": "Mast cell-independent urticaria", "u": "/e/urticaria-and-angioedema/mast-cell-independent-urticaria/", "s": "Hives from non-mast cell histamine release mechanisms."}, {"n": "Physical urticaria", "u": "/e/urticaria-and-angioedema/physical-urticaria/", "s": "Hives triggered by physical stimuli, not spontaneous onset."}, {"n": "Pressure urticaria", "u": "/e/urticaria-and-angioedema/pressure-urticaria/", "s": "A physical urticaria with delayed swelling and pain after pressure."}, {"n": "Quincke edema", "u": "/e/urticaria-and-angioedema/quincke-edema/", "s": "An older term for angioedema, often linked to hereditary angioedema."}, {"n": "Solar urticaria", "u": "/e/urticaria-and-angioedema/solar-urticaria/", "s": "A rare physical urticaria triggered by UV or visible light."}, {"n": "Hives", "u": "/e/urticaria-and-angioedema/hives/", "s": "Hives are raised, itchy skin welts often triggered by allergies or infections."}]