The main reasons why skin tends to itch more at night include natural bodily changes, skin dryness, and potential underlying health issues. At night, the body's circadian rhythm causes changes such as increased skin temperature and greater blood flow to the skin, which can trigger itchiness. Furthermore, the skin loses more moisture during the night, leading to dryness that aggravates itching. Also, the body releases more inflammatory substances (cytokines) and fewer anti-inflammatory hormones, making the skin more prone to irritation. Additionally, fewer distractions at night make individuals more aware of the itch sensation, intensifying the feeling. Medical conditions like eczema, psoriasis, insect infestations (like scabies or bedbugs), allergies, and systemic diseases such as liver or kidney problems can also cause or worsen nighttime itchiness. Psychological factors including stress and anxiety may contribute as well.
If the itching is severe, persistent, or accompanied by other symptoms, consulting a healthcare provider is recommended for proper diagnosis and treatment.
