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Polydipsia Definition

Polydipsia Definition, we define it as thirst is a normal reaction to the body’s need for more water in order to maintain a healthy fluid balance. The desire to drink is usually controlled by a part of the brain called the hypothalamus.

#What Is Polydipsia Definition?

Polydipsia Definition means that monitors the concentration of certain substances in the blood (such as salt) and triggers the thirst response when the concentration becomes too high.

It is natural to be thirsty, especially after exercise or on hot days when you sweat heavily. An abnormal thirst is when you feel excessively thirsty, despite consuming. enough liquid, or because of illness.

You should drink at least eight glasses of fluid a day, such as water and fruit juice. Remember, coffee, tea, and alcohol increase fluid loss.

#How To Define The Polydipsia Definition?

Polydipsia Definition


Increase your fluid intake in hot or humid conditions.

Drink more fluids when you have a fever, cold, influenza, diarrhea, or other illness.

Vomiting or diarrhea lead to dehydration, and the body’s response is to react with intense thirst. This thirst should be quenched, but if symptoms continue, consult your doctor.

Any change in the pattern of thirst should be reported, as it may be a warning sign of diabetes.

#What Conditions Cause Polydipsia Definition?


Excessive sweating can cause dehydration (water loss) if the fluid is not replaced. It is a normal response to being hot, and to exercise, but it may also be a symptom, for example, waking at night drenched with sweat and feeling thirsty may be a sign of chronic infection, such as tuberculosis.


A high or prolonged fever can cause dehydration and excessive thirst, especially if it is accompanied by vomiting and/or diarrhea. You should increase your fluid intake if you have a fever.


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Acute or prolonged diarrhea and or vomiting can cause dehydration and thirst as a result. Prolonged diarrhea related to an intestinal infection or food poisoning can be serious enough to require fluid to be given intravenously (directly into the bloodstream via a vein), especially in a young child or elderly person.


Alcoholic drinks act as diuretics (increasing the body’s excretion of water) leading to a need to increase fluid intake. After having too much to drink, you are likely to wake with a dry mouth and feeling thirsty. You should drink water or fruit juice to relieve the thirst, not more alcohol.


Clinical shock is a sudden drop in blood pressure and reduction in the blood flow through the body, often due to injury, but sometimes due to illness or very severe infection.

It is a medical emergency requiring first aid and prompt medical treatment. Extreme thirst is a classic symptom, plus drowsiness, confusion, weakness, nausea, shivering and sweating, shallow, rapid breathing, and weak, rapid pulse.

Diuretics (water pills)

These increase the body’s excretion of water. Many people taking large doses of diuretics for high blood pressure or other conditions complain of feeling overly thirsty.

Other medications

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Drugs that can produce a dry mouth, and thirst, as a result, include antidepressants, narcotic painkillers, and certain tranquilizers.

Diabetes mellitus

This condition results when the body either does not produce enough of the hormone insulin or the cells are unable to respond to the hormone.

Insulin controls the way glucose (a primary source of energy) is stored or used. The classic symptoms of diabetes mellitus are excessive thirst, excessive urination, and loss of weight.

Diabetes insipidus

This condition is unrelated to the more common form of diabetes (mellitus). It occurs when the antidiuretic hormone vasopressin is lacking, or when the kidneys are unable to respond to the hormone.

Vasopressin prevents the kidneys from excreting too much water. When it is not functioning properly, several gallons of urine may be excreted daily, causing extreme thirst and the need to drink large quantities of liquids.


Thirst may be a symptom of severe anemia, a condition in which there are fewer than the normal number of red blood cells or less than the normal amount of hemoglobin (the pigment needed in order for the red cells to carry oxygen to the rest of the body).

Acute erosive gastritis

Caused by the intake of poison, this is a medical emergency and usually requires immediate hospitalization. Along with excessive thirst, there will be severe stomach pain, a fast pulse, difficulty swallowing, and possible vomiting of blood.


polydipsia diabetes

This is inflammation of the membrane that covers the abdominal organs, usually due to an abdominal organ rupturing, such as a perforated appendix or peptic ulcer.

It can also result from a faulty abortion, the leakage of blood from an ectopic pregnancy (in which a fertilized egg becomes implanted outside the uterus).

Intense pain is a primary symptom, as well as vomiting, rapid heartbeat, fever, and thirst. Peritonitis usually requires emergency surgery. The affected person must not drink.


This is a parasitic infection which is spread by mosquito bite. It is rarely contracted in the UK, although common in the tropics. The disease is characterized by periods of high fever and excessive sweating, both of which can cause thirst, due to dehydration.


In hot weather, especially when it is humid, thirst may not occur, despite the body beginning to dehydrate. This can lead to heat exhaustion and heat stroke, both potentially life-threatening conditions.

Take care to increase your fluid intake, particularly if you are exercising vigorously in hot, humid conditions, even if you do not have any thirst to quench. However, avoid alcohol in these situations, as it causes the body to lose extra water through increased sweating and urination.

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