The signs and symptoms of T1D overlap with those of type 2 diabetes (T2D), which commonly results in many adults with T1D being mistakenly diagnosed with T2D. A classical sign of T1D is unintentional weight loss; other symptoms include:
- Increased thirst
- Extreme hunger
- Frequent urination
- Fatigue and weakness
- Blurred vision
- Impaired wound healing
Sometimes the first indication of T1D is a life-threatening condition called diabetic ketoacidosis (DKA), which is characterized by excessively high levels of ketone bodies in combination with high blood glucose.[1] Symptoms of DKA include fruity-smelling breath, deep and rapid breathing, dry or flushed skin, and nausea or vomiting.[1]