What causes the skin to suddenly become rough?

Sudden roughness of the skin may result from the combined effects of various factors. Environmental factors, such as sun exposure, air pollution, and climate changes, can damage the skin and lead to a rough texture. Aging also causes the skin to gradually lose elasticity and moisture, making it dry and coarse. Additionally, unhealthy lifestyle habits, such as smoking, alcohol consumption, irregular作息 (作息 should be translated as "sleep patterns" or "作息 habits"), and inadequate daily skincare, can worsen the skin's condition and cause roughness. To address this issue, it is recommended to pay attention to skin moisturization and sun protection in daily life, use gentle skincare products, and minimize environmental damage to the skin. Maintaining healthy lifestyle habits, such as a balanced diet, sufficient sleep, and moderate exercise, can also help improve skin condition. If the problem of rough skin persists or worsens, it is advisable to consult a doctor or dermatologist promptly for more professional diagnosis and treatment recommendations.