16 Sneaky Symptoms That Could Mean Your Blood Sugar Is Too High

13. Frequent Infections

Diabetes weakens the immune system, leaving individuals more vulnerable to infections. Common infections include urinary tract infections (UTIs), respiratory infections, and skin infections. High blood sugar impairs white blood cell function, reducing the body’s ability to fight bacteria and heal wounds effectively. Frequent infections are a sign that diabetes may not be well-managed. Preventative measures, including maintaining stable blood sugar levels, practicing good hygiene, and getting recommended vaccinations, can help reduce infection risk.

14. Nausea and Vomiting

Nausea and vomiting are critical warning signs of dangerously high blood sugar levels, often indicating diabetic ketoacidosis (DKA), a severe and life-threatening complication. DKA occurs when the body, unable to utilize glucose for energy due to a lack of insulin, begins breaking down fat as an alternative energy source. This process produces ketones—acidic byproducts that build up in the blood, leading to a condition called ketosis. Symptoms of DKA typically include severe nausea, vomiting, abdominal pain, and a distinct fruity or acetone-like smell on the breath. Other associated signs may include rapid breathing, confusion, and fatigue. If left untreated, DKA can result in severe dehydration, electrolyte imbalances, coma, or even death. Immediate medical intervention is essential. Treatment typically involves administering insulin to lower blood sugar levels, rehydrating the body with intravenous fluids, and restoring electrolyte balance. Recognizing these symptoms early and seeking prompt medical care can prevent catastrophic outcomes.