Women always feel cool in the back, most may be due to environmental factors, blood does not flow caused. 1. Environmental factors: the waist by the external cold invasion, such as wearing clothes too short, waist exposure part too much, the outside world of the cold air so that the local cooling, thus appearing in the back waist always feel cool phenomenon. Even the appearance of lumbar pain, activity restrictions and other manifestations. 2. Blood is not smooth: long-term standing or keep bending action, can lead to lumbar muscles continue to pull, in the state of strain, causing muscle stiffness, can appear blood circulation is not smooth, thus causing the phenomenon of the back always feel cool. In addition, it is recommended that women who always feel cool in the back go to the hospital in time to avoid delaying the condition.