Dry mouth does not correlate with platelets, but conditions that can cause symptoms of dry mouth may result in a decreased platelet count, such as dry syndrome. The symptoms of dry mouth are not caused by a decrease or increase in platelet count, but diseases that can lead to thrombocytopenia may cause symptoms of dry mouth. For example, dry syndrome, which causes dry mouth and dry eyes, is a rheumatologic-immune disease that increases the immune destruction of platelets in the patient’s body, leading to thrombocytopenia. Most diabetic patients also experience dry mouth, but do not experience a decrease in platelet count. In addition, in the human body due to fever, burns, strenuous exercise, diarrhea, vomiting and other conditions can lead to a large amount of water loss in the body, there will also be dry mouth symptoms, this time to be rehydration therapy can gradually return to normal. If the patient at the same time dry mouth and platelet abnormalities, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease for targeted treatment.