A strong and persistent need to drink, most commonly due to dehydration. Other causes include untreated diabetes mellitus and diabetes insipidus, kidney failure, treatment with phenothiazine drugs, and severe blood loss. Abnormal thirst may also be due to a psychological condition known as psychogenic polydipsia.
The sensation of thirst is generally felt at the back of the throat, because, when there is a de?ciency of water in the system, the throat and mouth especially become parched by evaporation of moisture from their surface. Thirst is increased by heat, and is a constant symptom of FEVER; it is also present in diseases which remove a considerable amount of ?uid from the system, such as diarrhoea, DIABETES MELLITUS and DIABETES INSIPIDUS, and after great loss of blood by haemorrhage. A demand for water is also a feature of many conditions associated with prolonged exertion, severe exhaustion and DEHYDRATION.... thirst
May be due to worms, pregnancy, nervous excitability in adolescents. Unhappy anxious people tend to over-eat. With some forms of indigestion there is constant desire to eat. To decrease appetite. Fennel, Hawthorn, Wild Lettuce, Chickweed, Comfrey. ... appetite – excessive
The production of too much saliva. Excess salivation sometimes occurs during pregnancy. Other causes include mouth problems such as irritation of the mouth lining, gingivitis, or mouth ulcers; digestive tract disorders such as peptic ulcers and oesophagitis; and nervous system disorders such as Parkinson’s disease. In some cases, it may be reduced by anticholinergic drugs.... salivation, excessive
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