What is Adipsia – Mapfre Blogs

Adipsia is a rare disorder that prevents feeling thirst, which can cause severe dehydration if it is not controlled. It is usually related to damage to the hypothalamus due to injuries, neurological diseases or psychiatric disorders. Its treatment is based on programmed hydration and the management of the underlying cause.

Adipsia is an unusual condition characterized by the absence or decrease in thirst sensation, which can lead to insufficient fluid intake and, consequently, severe dehydration if it is not properly controlled.

Causes of Adipsia

Thirst regulation is a complex function controlled mainly by the hypothalamus, a region of the brain that maintains the water balance of the organism. The causes of adipsia are usually related to alterations in this area and may include:

• Brain injuries: craniocerephic trauma, tumors or infections that affect hypothalamus can alter the perception of thirst.
• Neurological diseases: Disorders such as encephalitis or neurodegenerative diseases can damage the neuronal pathways responsible for thirst feeling.
• Psychiatric disorders: Rarely, psychiatric conditions can lead to a lack of interest in fluid intake, known as psychogenic adipsia.

Associated symptoms

The main manifestation of Adipsia is the absence of thirst, even in situations that would normally cause it, such as after physical exercise or in warm climates. This lack of fluid intake can lead to:

• Dehydration: Dry mucous membranes, decreased urine production, dry skin and loss of skin elasticity.
• Electrolytic alterations: particularly hypernatremia (elevation of blood sodium levels), which can cause confusion, muscle weakness and, in severe cases, seizures.
• Kidney complications: Prolonged dehydration can lead to acute renal failure.

How is it diagnostic?

The diagnosis of adipsia requires an exhaustive medical evaluation that includes:

• Medical record: Detailed compilation of symptoms, medical history and possible trigger factors.
• Neurological exams: Evaluation of brain function to identify possible injuries or dysfunctions in the hypothalamus.
• Laboratory tests: Blood analysis to detect electrolytic imbalances, especially high sodium levels.
• Brain images: magnetic resonance or computerized tomography to visualize possible structural anomalies in the brain.

Potential complications

If it is not properly treated, adipsia can lead to serious complications, such as:

• Chronic dehydration: which can negatively affect renal function, blood circulation and body temperature regulation.
• Hypernatremia: which can cause neurological symptoms such as confusion, lethargy and seizures.
• Renal failure: Due to the prolonged decrease in fluid intake.

Recent treatments and complications prevention

Adipsia management focuses on preventing dehydration and addressing the underlying cause when possible. Since there is no specific pharmacological treatment to restore the sensation of thirst, current strategies include:

• Programmed fluid intake: Establishing regular schedules for water consumption, regardless of thirst feeling, is fundamental. It is recommended to adapt the amount of liquids according to factors such as climate and physical activity.
• Patient education: Inform those affected about the importance of adequate hydration and teach them to recognize early dehydration signs.
• Regular monitoring: Periodic control of electrolyte levels and renal function to detect and treat imbalances in time.
• Treatment of underlying causesS: If adipsia is secondary to a brain injury or a neurological disorder, the approach to these conditions can improve the situation.

As for recent advances, neuromodulatory interventions and therapies aimed at hypothalamus are being explored to restore thirst feeling, although they are still in experimental phases and are not clinically available.

Adipsia is a rare but potentially dangerous due to the risk of severe dehydration. Early recognition, together with programmed hydration strategies and the management of underlying causes, are essential to prevent serious complications. If you suffer these symptoms, remember that in Mapfre health insurance you will have great specialists that will accompany you in your follow -up. Patient education and regular medical monitoring play a crucial role in the effective management of this condition.

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What you should know …

• The main manifestation of Adipsia is the absence of thirst, even in situations that would normally cause it, such as after physical exercise or in warm climates.
• Adipsia management focuses on preventing dehydration and addressing the underlying cause when possible.
• If it is not properly, adipsia can lead to serious complications, such as chronic dehydration, a condition that can negatively affect renal function, blood circulation and body temperature regulation.

Literature

• Medline Plus: absence of thirst, available in Medlineplus

Posted by Dr. Montserrat Marín Moreno