What causes itching on the skin of the lower leg?

The causes of itching on the skin of the lower leg are complex and varied, mainly including the following: dry skin is a common cause, particularly in the autumn or winter when the air is dry and skin loses moisture quickly, making itching more likely to occur. Skin diseases such as eczema, dermatitis, and urticaria can also lead to lower leg itching; these conditions are often associated with factors like allergies and infections. Prolonged standing or walking, leading to poor circulation in the lower limbs, may also cause itching. In addition, external factors such as insect bites, contact with irritants, or friction from synthetic fiber clothing can trigger itching. Certain chronic diseases, such as diabetes and varicose veins, may also present with symptoms of lower leg skin itching. Therefore, diagnosis and treatment of lower leg skin itching should be based on individual circumstances.