Oral mucus hoo-hoo may be caused by drinking less water, but also may be related to dry syndrome, endocrine disorders and other factors. 1. Drinking less water, if you drink less water in your normal life, the saliva secretion in your mouth is less, and the symptoms of oral mucus huffing and puffing may appear after concentration. 2. Dry syndrome, clinically appear oral dry syndrome due to autoimmune function is affected, may lead to oral salivary secretion decrease, so this symptom will appear. 3. Endocrine disorders, some patients with endocrine disorders due to hormone secretion disorders, estrogen or androgen secretion decrease, salivary gland secretion function decline, may lead to saliva reduction, so there will be oral mucus hoo-hoo symptoms. Usually need to drink more water, pay more attention to personal diet, if the disease is the best timely medical treatment.