Why are you always thirsty if it’s not diabetes? Health Central: Betul Hatipoglu, professor at the School of Medicine, said that while diabetes is a common cause of unexplained thirst, it’s not the only one. Chief among them: dehydration. “Water is essential for our existence,” she said. “Dehydration from any cause (vomiting, diarrhea, excessive urination, etc.) will diminish our body’s overall amount of water.” |