The appearance of a vertical red mark on the bridge of the nose may be due to physiological factors such as localized pressure, or consider artificial urticaria, trauma and other factors.
1. Physiological factors: if the local pressure, such as improper sleeping posture, resulting in blood circulation obstruction on the bridge of the nose, there may be a vertical red mark on the bridge of the nose.
2. Artificial urticaria: its etiology is not yet clear, it may be caused by vasoactive mediators released by skin mast cells, scratching, clothing friction and other factors. After scratching or rubbing the local skin, the patient may develop a strip-like elevation with erythema, which is manifested as a vertical red mark on the bridge of the nose.
3. Trauma: When the bridge of the nose of the patient by the outside world directly or indirectly impact, extrusion, resulting in local skin damage, will cause patients to appear on the bridge of the nose appear a vertical red mark.
There are many reasons for the appearance of a vertical red mark on the bridge of the nose, it is recommended that the patient to identify the cause of the disease in a timely manner.