Difference between Diabetes Insipidus and Diabetes Mellitus

If you work in EMS long enough, you'll stumble upon a patient who has diabetes. Like many others, you'll have surmised that it's a sort of the widespread condition diabetes mellitus. Actually, with the exception of the name, Diabetes Insipidus and diabetes Mellitus haven't any affiliation in the least bit. The Latin root of the word diabetes, that originally meant "to undergo or syphon," refers to the kidneys' prodigious amounts of urine. Mellitus is a Latin word meaning "sweet."

In this article, we will be learning about the difference between diabetes insipidus and diabetes mellitus.

What is Diabetes Insipidus?

A rare unhealthiness known as diabetes insipidus (DI) causes the kidneys to get an excessive quantity of diluted urine. 1-3 litres of urine area unit generally excreted by the kidneys each twenty-four hours. urination exceeds three litres per twenty-four hours and is often considerably larger in those with diabetes (15-20 litres per twenty-four hours).

Antidiuretic hormone (ADH), conjointly mentioned as arginine vasopressin, controls urine production. To maintain the correct balance of electrolytes (sodium, chloride, and potassium) and CO2, ADH is free to instruct the kidneys on when to store or release water. It controls how thirst feels in addition. There's no cure for diabetes. However, treatments will relieve your thirst and reduce your urine output and prevent dehydration.

What is Diabetes Mellitus?

Blood sugar levels rise as a result of diabetes mellitus, and eventually glucose leaks into the urine. Patient experience the standard kidney disease and thirst as a result of the glucose spill, which ends up in water loss.

Insipidus may be a Latin word that means tasteless. diabetes was mentioned as the "pissing evil" in mediaeval times, and "water tasters" who tasted the patient's urine were used to wanting to diagnose the condition. The patient was diagnosed with diabetes mellitus if the urine tasted sweet or "like honey." If it tasted like water or wasn't sweet, there may well be different reasons. a collection of metabolic illnesses referred to as diabetes, generally referred to as diabetes mellitus, are characterised by persistently elevated glucose levels (hyperglycemia).

Common symptoms include augmented thirst, hunger, and frequent voiding. polygenic disease will lead to varied health problems if it's not self-addressed. cute complications would

possibly end in hyperosmolar symptoms, diabetic ketoacidosis, or perhaps death. heart disease, stroke, chronic excretory organ unwellness, and foot ulcers are unit samples of serious long-run consequences.

Similarities between Diabetes Insipidus and Diabetes Mellitus

  • Both diabetes insipidus and diabetes mellitus ailments can cause an increase in thirst, liquid intake.

  • Both diabetes insipidus and diabetes mellitus the person frequently needs to get up to urinate during the night.

Difference between Diabetes insipidus and Diabetes Mellitus


Diabetes Insipidus

Diabetes Mellitus


A rare illness known as diabetes insipidus ends up in associate degree unbalanced fluid level within the body. You produce a great deal of urine as a result of this imbalance. Even if you've got something to drink, it conjointly causes you to be really thirsty.

A collection of metabolic illnesses referred to as diabetes, generally referred to as are, are characterised by persistently high glucose levels (hyperglycemia).


  • Being extremely thirsty

  • Producing large amounts of pale urine

  • Preferring cold drinks more than the normal consumption

  • Urinating often

  • Losing weight without trying

Blood sugar level

In Diabetes Insipidus the blood sugar level of the individual remains normal.

In Diabetes mellitus the individuals blood sugar level remains high.


In Diabetes Insipidus the Cholesterol level of the individual remains normal.

In Diabetes Insipidus the Cholesterol level of the individual increases.

Ketonen formation

Ketonen formation does not occur in diabetes insipidus.

Ketonen formation occurs in diabetes Mellitus.

You could have extreme fatigue if you have diabetes insipidus because of dehydration. Another reason could be a deficiency in electrolytes like salt, potassium, or calcium, which are flushed out with all the urination. When your blood sugar levels are either too low or too high, if you have diabetes mellitus, you could experience extreme fatigue.


Diabetes Mellitus is caused due to the lack of insulin or hyposecretion of insulin. There are two types of diabetes mellitus, i.e. Type-1 diabetes mellitus and Type-2 diabetes mellitus. Type-1 diabetes mellitus is also called Insulin Dependent Diabetes Mellitus (IDDM). Type-2 diabetes mellitus is called Non-Insulin Dependent Diabetes Mellitus (NIDDM).

Diabetes Insipidus is caused by the deficiency of ADH. In this, the person suffers from polyurea. It is also called Drinker’s disease. Both the diseases cause different problems and have different treatments. Either way it is better to get yourself treated at the right time to avoid further complications.

Updated on: 20-Jan-2023


Kickstart Your Career

Get certified by completing the course

Get Started