Causes of Skin Itching

The causes of skin itching are diverse, mainly including: 1. Skin problems: Dry skin lacks moisture and oils, leading to weakened barrier function and making it susceptible to external irritants that can cause itching. In addition, skin conditions such as eczema, dermatitis, and urticaria can also cause skin itching. 2. Allergic reactions: Certain substances in foods, medications, cosmetics, or the environment may trigger allergic reactions, resulting in redness, swelling, itching, and possibly rashes on the skin. 3. Internal diseases: Conditions such as diabetes, liver and kidney diseases, and blood disorders may indirectly lead to skin itching by affecting the body's metabolism and immune system. 4. Neurogenic factors: Emotional states such as mental stress, tension, and anxiety may also cause skin itching. Understanding the causes of skin itching helps patients promptly take appropriate measures for relief and treatment.