Polydipsia can lead to several risks, especially in the context of toxicology. One significant risk is the development of electrolyte imbalances, such as hyponatremia, which can result from excessive water consumption. Symptoms of hyponatremia include nausea, headache, confusion, seizures, and in severe cases, coma. Additionally, polydipsia can exacerbate underlying medical conditions, leading to complications such as renal failure or cardiovascular issues.