Dry mouth and nails with vertical lines may be due to anemia or vitamin deficiency. 1. Anemia: Anemia is a clinical syndrome that manifests itself when the total volume of red blood cells in human blood decreases and falls below normal. Patients may have symptoms such as dry mouth, vertical lines on the nails, and some patients may also have symptoms such as pallor, dizziness, panic, and fatigue. It is recommended to eat more foods rich in iron. 2. lack of vitamins: if the patient has a dry mouth, nails have vertical lines of the situation, may also be a long-term lack of vitamins, especially the lack of vitamin A. Can be under the guidance of the doctor to supplement vitamin A. The patient may also have a dry mouth, nails have vertical lines of the situation. Dry mouth, nails with vertical lines may also be caused by other reasons, it is recommended to go to the hospital in a timely manner to identify the cause of the disease and take appropriate measures for treatment.