What causes nighttime skin itching?

Nighttime skin itching may be caused by various factors: 1. Allergic conditions: Allergic skin diseases such as dermatitis or eczema may not be as noticeable during the day due to distractions, but the sensation of itching can intensify at night when the body is relaxed. 2. Scabies infection: Female scabies mites are more active at night, which may lead to increased itching in the evening—this is related to the biological characteristics of the mites. 3. Skin aging: In elderly individuals, reduced levels of water-lipid emulsions in the skin cause dryness, making them more prone to itching during quiet nighttime hours. 4. Physiological factors: Excessive mental stress, dry weather, or insufficient fluid intake may disrupt nerve function or lead to skin dehydration, thereby triggering itching. 5. Other skin disorders: Conditions such as contact dermatitis or urticaria may also become more symptomatic at night. The causes of nighttime skin itching are diverse and require careful analysis and diagnosis based on individual circumstances.