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Primary polydipsia may have physiological causes, such as autoimmune hepatitis. Since primary polydipsia is a diagnosis of exclusion, the diagnosis may be made for patients who have medically unexplained excessive thirst, and this is sometimes incorrectly referred to as psychogenic rather than primary polydipsia. [13]
Chronic dry mouth is prevalent in a high proportion of the elderly population, affecting roughly one fifth of the group. [25] There has been a link between dry mouth and comorbid diseases including diabetes , Alzheimer's or Parkinson's disease [ 14 ] [ 16 ] Additionally, xerostomia can arise from general dehydration . [ 26 ]
Xerostomia is the subjective sensation of dry mouth, which is often (but not always) associated with hypofunction of the salivary glands. [3] The term is derived from the Greek words ξηρός (xeros) meaning "dry" and στόμα (stoma) meaning "mouth". [4] [5] A drug or substance that increases the rate of salivary flow is termed a sialogogue.
Polydipsia is excessive thirst or excess drinking. [1] The word derives from Greek πολυδίψιος (poludípsios) 'very thirsty', [2] which is derived from Ancient Greek πολύς (polús) 'much, many' and δίψα (dípsa) 'thirst'. Polydipsia is a nonspecific symptom in various medical disorders.
In adults over the age of 50 years, the body's thirst sensation reduces and continues diminishing with age, putting this population at increased risk of dehydration. [6] Several studies have demonstrated that elderly persons have lower total water intakes than younger adults, and that women are particularly at risk of too low an intake.
Adipsia, also known as hypodipsia, is a symptom of inappropriately decreased or absent feelings of thirst. [1] [2] It involves an increased osmolality or concentration of solute in the urine, which stimulates secretion of antidiuretic hormone (ADH) from the hypothalamus to the kidneys.
Polydipsia – frequent thirst, especially excessive thirst; Polyuria – increased volume of urination (not an increased frequency, although it is a common consequence) Blurred vision; Fatigue; Restlessness; Weight loss or weight gain; Poor wound healing (cuts, scrapes, etc.) Dry mouth; Dry or itchy skin; Tingling in feet or heels; Erectile ...
Some people may experience only the mild symptoms of dry eyes and mouth, while others have symptoms of severe disease. Many patients can treat problems symptomatically . Others experience blurred vision , constant eye discomfort, recurrent mouth infections , swollen parotid glands , dysphonia ( vocal disorders including hoarseness), and ...
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