What causes itchy skin on the lower leg?

There are various causes of itchy skin on the lower legs, primarily including: 1. Environmental factors: cold weather or low-humidity environments may reduce the skin's natural oil secretion, leading to moisture loss and triggering itchiness. 2. Dry skin: loss of skin moisture due to dry environments, excessive washing, or using inappropriate moisturizing products can cause dryness and itching. 3. Skin conditions: inflammatory skin diseases such as eczema, urticaria, and folliculitis may cause redness, swelling, and itching on the lower legs. 4. Allergic reactions: exposure to allergens such as pollen, dust mites, certain foods, or medications may trigger allergic skin reactions, resulting in itchy lower leg skin. 5. Other factors: specific conditions like ichthyosis or stasis dermatitis, as well as prolonged sitting or wearing ill-fitting clothing, may also lead to itchy skin on the lower legs. For persistent itching on the lower legs, medical evaluation is recommended.