Reasons of having excessive thirst:


If some ones  feels  the need to   drink lots of water, most of time  reason is usually  known . For example,   not  drinking enough of it. But some times there can be more sinister mechanisms and need evaluation. There can be number of diseases,  which can  present  by  excessive thirst.   This derangement is  more  other than merely being dehydrated.

If drinking more fluids for several days hasn’t helped, there can be reasons other than dehydration.

Dehydration:

If some ones  feels  the need to   drink lots of water, most of time  reason is usually  known . For example,   not  drinking enough of it. Dehydration occurs if some one  does really hard work  in the ground or  sweating in the sun. The loss of fluids need to be replenished .

Dehydration commonly happens, in cases of food poisoning ,  diarrhoea, vomiting, inability to eat or drink  and loose motions.

Diabetes

One of the most important symptom of diabetes is thirst.  All types of  diabetes will present as increased intake of water and being thirsty.  Frequent urination, another common symptom of diabetes, will bring on thirst.   Therefore  excessive thirst and urination, along with unexplained weight loss, fatigue, or irritability, can be indications of diabetes.

Dry mouth

The abnormal dryness of the mucous membranes in the mouth, due to decreased  flow or change in the composition of saliva.  It is  also known as xerostomia, is often mistaken for excessive thirst.  Causes of dry mouth include smoking tobacco, use of  marijuana, stress, anxiety, or  aging.  But certain drugs (antidepressants) and autoimmune diseases can also cause dry mouth.

One  may think  being thirsty, whereas  actual reason is  having a dry mouth.

Dry mouth can present as :

  • a burning sensation or soreness in your mouth
  • changes in your sense of taste
  • difficulty speaking, eating or swallowing.

Menstrual blood loss

Estrogen and progesterone levels can both affect fluid volume.  If blood flow is more, it can  also cause  more  blood loss.   The blood loss will cause increase in thirst.

 

Thyroid problems

When the thyroid function is deranged , hormone  production is erratic can,  produce increased  or less e hormone. Thyroid dysfunction can   spur a variety of nonspecific symptoms, including abnormally heavy periods, anxiety, feeling hot, and dry mouth. These all can lead to increased thirst.

 Stress

Stress or specially chronic  stress is a cause for  adrenal gland dysfunction specially if  stress is severe.  This can cause dizziness,  depression, anxiety, and  severe  thirst.

 

Diuretic  and food containing diuretics:

    Drugs that produce lot of urine  are diuretics. They  can cause feeling of thirst.

Foods that have a diuretic effect can make you thirsty because they cause you to urinate more. Foods like melons,  ginger, celery, asparagus, beets, lemons.

 

Low-carbohydrate  diets:

        One of  side effect of Keto- diet  is thirst. The eating plan  significantly cuts down on  carbohydrate intake.   Carbohydrates s absorb  more water than protein and fat.

 

Pregnancy:

excessive thirst can happen in pregnancy due to many reasons for example  Increased urination,  nausea and morning sickness

Excessive bleeding:

Ongoing or sudden blood loss,   can  cause  thirst levels  in order to  make up for the fluid loss.

 

Diabetes insipidus:

Diabetes insipidus is a rare disorder that affects water absorption.   It can cause loss of huge  amounts of water  by production of litres of urine.   Cause can be brain or kidney called as central and nephrogenic respectively.

Psychogenic  polydipsia:  this is an urge to drink more water and  patients are unable to control the urge.  Patients may have intake of many litres per day.

 

 

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