Early symptoms of high blood sugar, often elusive and varied, underline the importance of routine screening to avert serious health damage, say experts. Recognising lesser-known signs and understanding when to seek urgent care can make a critical difference in managing diabetes effectively.
Feeling unusually worn out, getting up to urinate repeatedly, or noticing that small wounds linger could all be early clues that blood sugar is running too high. The Centres for Disease Control and Prevention says diabetes often develops slowly and can show few obvious symptoms at first, which is one reason so many people miss it until a routine check or a complication brings it to light. That matters because both prediabetes and diabetes are widespread in the US, and experts warn that delay can mean avoidable damage to the eyes, kidneys, nerves and heart.
Diabetes develops when the body does not make enough insulin, or cannot use it properly, allowing glucose to build up in the bloodstream rather than reaching the cells that need it. Type 1 diabetes is an autoimmune condition, while type 2 is far more common and is strongly linked to insulin resistance. Prediabetes sits in between: a warning stage that can persist for years before progressing.
Doctors say the most familiar warning signs include excessive thirst, frequent urination, unexplained weight loss, blurred vision and persistent fatigue. But for many women the clues are less obvious. Recurring urinary tract infections, repeat yeast infections, tingling in the hands or feet, slower healing after cuts and dark, velvety skin patches around the neck or in folds of skin can all point towards rising insulin resistance or nerve damage. Menopause-like symptoms, such as tiredness and sleep disruption, may also feel worse when glucose is poorly controlled.
Because symptoms are not always enough to make the diagnosis, clinicians rely on blood tests. The main checks are the fasting plasma glucose test, the A1C test, which reflects average blood sugar over roughly three months, and the oral glucose tolerance test. The American Diabetes Association says regular screening is particularly important for catching type 2 diabetes early, when treatment tends to work best. Gestational diabetes is another important issue, although the CDC notes it often has no clear symptoms.
Some signs call for urgent help. If high blood sugar progresses into diabetic ketoacidosis, which can happen in type 1 diabetes, warning signs can include nausea, vomiting, abdominal pain, laboured breathing, fruity-smelling breath, a fast heartbeat and confusion. That is a medical emergency. For prediabetes and type 2 diabetes, though, experts say lifestyle changes can make a major difference, from improving diet and activity levels to managing stress and weight where necessary.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
