High blood sugar levels, a hallmark of Type 2 diabetes, often appear subtly and are easy to overlook. Alarmingly, one in three people with diabetes are unaware they have it. Ignoring the early symptoms can result in serious complications like heart disease, nerve damage, and vision loss.
This article highlights the early warning signs of high blood sugar and outlines steps to prevent Type 2 diabetes—empowering you to protect your health. With proper diet, regular physical activity, and medications if needed, diabetes can be managed, allowing you to lead a full, healthy life.
Early Signs of Diabetes
1. Frequent urination (polyuria): If you’re going to the bathroom more often, especially at night, it could mean your kidneys are flushing out excess glucose.
2. Excessive thirst (polydipsia): Linked to frequent urination, the body tries to compensate for fluid loss by making you drink more.

3. Increased hunger (polyphagia): When cells don’t get enough glucose, your body responds with a sudden urge to eat.
4. Dry mouth: Lack of saliva can lead to dental problems and increase the risk of gum disease.
5. Unexplained weight changes: Rapid weight loss may occur if the body starts using muscle protein for energy. Conversely, sugar cravings may lead to weight gain.
6. Fatigue: When glucose can’t enter cells, the body lacks energy. Poor sleep from frequent urination can worsen exhaustion and irritability.
7. Blurred vision: High blood sugar affects the shape of the lens in the eye. Initially reversible, prolonged high levels can cause lasting damage.
8. Headaches: These may signal hyperglycemia, worsening as blood sugar rises.
9. Slow-healing wounds and infections: High glucose damages blood vessels, impeding the body’s ability to repair itself.
10. Yeast infections: Sugar promotes bacterial and fungal growth, particularly candida infections in women.

11. Numbness or tingling in hands and feet: This may indicate diabetic neuropathy, a serious complication caused by prolonged high blood sugar.
12. Skin changes: Dark, velvety patches (acanthosis nigricans) may appear on the neck, groin, or armpits. Itchy skin, especially in intimate areas, can also be a sign.
13. Sexual dysfunction: Damage to blood vessels and nerves can lead to vaginal dryness in women and erectile dysfunction in men. “35% to 75% of men with diabetes suffer from impotence.”
If you notice any of these signs, consult your doctor. A blood test like the fasting plasma glucose test can confirm the diagnosis. Readings above 126 mg/dL (on two occasions) indicate diabetes. Readings between 100 and 125 mg/dL suggest prediabetes.