Five, seven, ten, sometimes even fifteen liters of water a day: these quantities may seem unimaginable, yet some people consume them daily. This behavior has a medical name: polydipsia . This addiction to water, often associated with psychological disorders, exposes your body to major risks such as hyponatremia , that is, a blood sodium level that is too low. Whether you are directly affected or are simply looking for information, we invite you to learn more about this disorder: its definition, causes, symptoms, dangers, and possible treatments.
What is potomania?
Definition of potomania
Potomania is a behavioral disorder characterized by excessive and Uncontrollable thirst, primarily for water . Unlike normal physiological thirst, it does not correspond to a real bodily need. It results from a compulsive impulse that drives one to drink excessively, sometimes more than ten liters .
Types of potomania
Two main forms can be distinguished:
- Primary potomania: also called psychogenic polydipsia, it is generally linked to psychiatric disorders such as schizophrenia.
- Secondary potomania: it can be associated with an organic disease, neurological disorders or certain medications that influence the regulation of thirst.
What are the causes of potomania?
Psychological and behavioral causes
The majority of cases originate from psychological illnesses . Patients with schizophrenia , anxiety disorders , or OCD (obsessive-compulsive disorder) are particularly at risk. Some people with polydipsia develop an obsession with hydration , mistakenly believing that drinking large amounts of water will purify their bodies.
Possible medical causes
Brain damage affecting the hypothalamus , the area of the brain that regulates thirst and certain hormones, can disrupt the signals sent. Some medications , particularly neuroleptics, can induce dry mouth , creating the illusion of an increased need to drink.
What are the symptoms of potomania?
Physical signs
Potomania is generally characterized by polyuria , meaning excessive urine production , with very frequent trips to the toilet. You may also experience headaches, nausea, or vomiting . When hyponatremia develops , it can lead to cerebral edema , mental confusion, muscle cramps , or even seizures.
Psychological signs
A person with polydipsia develops a compulsive need to drink, even without feeling thirsty . You will notice a constant preoccupation with water consumption and significant anxiety if the person cannot drink as usual.
The dangers and consequences of potomania
The risks to physical health
Drinking too much water dilutes your blood sodium and disrupts the mineral balance in your body. This imbalance exposes you to water intoxication, with a risk of cerebral edema , heart problems , impaired kidney function , or even coma or death.
The psychological and social consequences
Potomania significantly disrupts your quality of life . The compulsion to constantly drink and urinate interferes with your daily activities and social relationships. The resulting social isolation can then exacerbate existing psychological problems.
How to diagnose potomania?
The role of the doctor and examinations
The diagnosis is based on a thorough interview with a specialist and biological tests . The blood test measures your sodium level , in other words, the concentration of sodium in the blood, while the urine test assesses the degree of dilution and the function of each kidney.
Differential diagnosis
Certain conditions, such as diabetes mellitus and diabetes insipidus, can easily be confused with polydipsia , as they also cause excessive thirst and significant urine production. Therefore, before confirming a diagnosis , doctors must rule out all these possibilities.
How to treat polydipsia?
Medical care
In cases of severe hyponatremia , hospitalization may be necessary to gradually restore electrolyte balance . Natremia correction must be gradual to avoid serious neurological complications during the first 24 hours . Thereafter, regular medical follow-up is essential to monitor your blood parameters.
Psychological and psychiatric follow-up
Cognitive behavioral therapy can help you identify the thoughts that fuel your compulsion . If you suffer from a psychiatric disorder, follow-up with a specialist and appropriate medication will be necessary.
Practical tips for regulating your water consumption
Keep a diary of your fluid intake and set gradual goals for reducing the amount you drink. Use smaller containers and learn to recognize the true signs of physiological thirst. Also, prioritize a healthy diet to maintain your electrolyte levels.
Can potomania be prevented?
Prevention begins with clear information about actual hydration needs . A healthy adult should normally consume approximately 1.6 to 2 liters of water per day, according to recommendations. If you have psychological disorders, appropriate monitoring can prevent the development of compulsive behaviors . Close monitoring of psychiatric patients with risk factors is essential, particularly those treated with neuroleptics.
Testimonials and case studies
A study published in The Journal of Nervous and Mental Disease describes the case of a 28-year-old man who drank excessive amounts of water and urinated constantly.
Despite numerous psychological examinations, doctors found no serious mental illness in this patient. He simply suffered from chronic anxiety and mild depressive symptoms , which was insufficient to explain his behavior .
The most interesting finding: an MRI (magnetic resonance imaging) scan revealed a small lesion in his brain. This lesion was located very close to the area that naturally controls our thirst . Doctors therefore hypothesized that this brain anomaly could explain why he felt an uncontrollable urge to drink .
Another documented case involves a 30-year-old man with untreated schizophrenia who was admitted to the emergency room after being found staggering in the street.
Upon arrival at the hospital, his condition was very concerning: he was aggressive, confused, and showed significant signs of psychosis (loss of contact with reality). Blood tests revealed that his sodium levels had fallen to 108 mEq/L, whereas the normal range is between 135 and 145 mEq/L.
Following questioning, doctors discovered that he was drinking up to 40 liters of water per day . The diagnosis was twofold: metabolic encephalopathy (brain dysfunction due to chemical imbalance) and polydipsia .
His treatment required a 21-day hospital stay combining strict fluid restriction , administration of olanzapine (an antipsychotic drug), and gradual correction of blood sodium levels .
This case illustrates how dangerous potomania can become, especially in people suffering from severe untreated psychiatric disorders.
Frequently Asked Questions about Potomania
What causes potomania?
Potomania primarily results from psychological disorders such as schizophrenia, anxiety, or OCD. It can also be linked to certain medications or brain injuries.
How much water should I drink per day to avoid polydipsia?
Recommendations suggest 1.5 to 2 liters of water per day for an adult. Listen to your natural thirst and don't force yourself to drink.
How can I tell if I'm drinking too much water?
Symptoms typically include very frequent urination, very clear urine, headaches, and an obsession with drinking water.
Is potomania dangerous?
Yes, it causes hyponatremia which can lead to cerebral edema, seizures, or even death in severe cases.
Can one be cured of potomania?
Yes, recovery is possible with a treatment combining medical and psychological follow-up.
Conclusion
Polydipsia is a complex disorder that deserves your attention and that of healthcare professionals. If you think you may have it, or if you know someone who is showing these signs, consult a healthcare professional promptly . Early diagnosis and appropriate treatment will allow you to Rediscover a healthy relationship with hydration . Remember that water is essential for life, but excessive consumption can be just as dangerous as dehydration.
Bibliography
Dundas, B., Harris, M., & Narasimhan, M. Review of psychogenic polydipsia: Etiology, differential diagnosis, and treatment. Curr Psychiatry Rep 9, 236–241 (2007). https://doi.org/10.1007/s11920-007-0025-7
Sailer, CO, Winzeler, B., & Christ-Crain, M. (2017). Primary polydipsia in the medical and psychiatric patient: Characteristics, complications and therapy. Swiss Medical Weekly , 147(4344), w14514. https://doi.org/10.4414/smw.2017.14514
Micoanski, K.S., Das, S., & Shoaf, S.E. (2025). Potomania and beer potomania: Clinical characteristics, pathophysiology, and management. Nutrients , 17(12), 2012. https://doi.org/10.3390/nu17122012
Singh, S., Padi, M. H., Bullard, H., & Freeman, H. (1985). Water intoxication in psychiatric patients. The British journal of psychiatry: the journal of mental science , 146, 127–131. https://doi.org/10.1192/bjp.146.2.127
Gankam Kengne, F., & Decaux, G. (2017). Hyponatremia and the Brain. Kidney international reports , 3(1), 24–35. https://doi.org/10.1016/j.ekir.2017.08.015
Fenske, W., Quinkler, M., Lorenz, D., Zopf, K., Haagen, U., Papassotiriou, J., Pfeiffer, A. F., Fassnacht, M., Störk, S., & Allolio, B. (2011). Copeptin in the differential diagnosis of the polydipsia-polyuria syndrome--revisiting the direct and indirect water deprivation tests. The Journal of clinical endocrinology and metabolism , 96(5), 1506–1515. https://doi.org/10.1210/jc.2010-2345
Tournikioti, K., Voumvourakis, K., Moussas, G., Plachouras, D., Michopoulos, I., Douzenis, A., Christodoulou, C., Lamboussis, E., & Gournellis, R. (2013). Primary polydipsia: a case report. The Journal of nervous and mental illness , 201(8), 709–711. https://doi.org/10.1097/NMD.0b013e31829c50fc
Hurwit, A.A., Parker, J.M., & Uhlyar, S. (2023). Treatment of Psychogenic Polydipsia and Hyponatremia: A Case Report. Cureus , 15(10), e47719. https://doi.org/10.7759/cureus.47719
