Type 2 diabetes can go undiagnosed for years, as symptoms often develop slowly or are unnoticeable. In contrast, symptoms of type 1 diabetes usually appear rapidly, over a few weeks or months.
You may need to take medication, including insulin, and check your blood sugars regularly too. Type 2 diabetes can go undiagnosed for years if you don't have symptoms or your symptoms are missed.
Warning Signs and Symptoms
Yes, diabetes can cause easier bruising and slow-healing bruises due to high blood sugar damaging blood vessels, affecting skin elasticity (thinning it), and impacting nerve function, which reduces sensation to minor injuries. Poor circulation from diabetes also means bruises take longer to heal because less oxygen and fewer nutrients reach the skin, impairing repair. Bruising can also occur from needles used for glucose monitoring or insulin injections, which can be more noticeable in diabetics.
Five common signs of prediabetes include increased thirst/urination, constant fatigue, blurry vision, dark skin patches (acanthosis nigricans), and slow-healing cuts or frequent infections, though prediabetes often has no noticeable symptoms, making early detection key. These signs often signal higher blood sugar levels, indicating your body isn't using insulin effectively.
Fasting blood glucose test
This is a blood test that measures blood sugar levels after fasting. If your fasting blood sugar level is between 100 mg/dL and 125 mg/dL, it's an indication that you're prediabetic.
Symptoms of hyperglycaemia
Three common signs of diabetes are increased thirst and frequent urination, extreme tiredness, and blurry vision or slow-healing sores, often stemming from high blood sugar levels affecting the body. These symptoms, sometimes called the "Three Ps" (polyuria, polydipsia, polyphagia), can develop slowly in Type 2 diabetes or quickly in Type 1.
Losing weight can reverse type 2 diabetes, but is rarely achieved or recorded. Type 2 diabetes is generally perceived as progressive and incurable, but for many patients it can be reversed with sustained weight loss of around 15 kg, say experts in The BMJ today.
It's not your fault
You've been diagnosed with type 2 diabetes because your body doesn't use insulin well. Because of that, it can't keep your blood sugar at normal levels. There are many factors that can lead to type 2 diabetes.
Changes in blood sugar can cause rapid changes in mood and other mental symptoms such as fatigue, trouble thinking clearly, and anxiety. Having diabetes can cause a condition called diabetes distress which shares some traits of stress, depression and anxiety.
Many people with diabetes have peripheral artery disease (PAD), which reduces blood flow to the feet. Also, many people with diabetes have neuropathy, causing you to not feel your feet. Together, these problems make it easy to get ulcers and infections that may lead to amputation.
For many people, the journey to type 2 diabetes begins with a lesser-known condition: insulin resistance. It's a silent disruptor that often goes unnoticed until blood sugar levels are dangerously high.
But untreated diabetes affects many major organs, including your heart, blood vessels, nerves, eyes and kidneys. Being diagnosed early and managing your blood sugar levels can help prevent these complications.
Diabetes can make you feel very tired. This is called fatigue. It happens because high blood sugar disrupts the body's ability to use sugar for energy. Dehydration from increased urination also can leave you feeling tired.
Diabetic retinopathy is an eye condition that can cause vision loss and blindness in people who have diabetes. It affects blood vessels in the retina (the light-sensitive layer of tissue in the back of your eye). If you have diabetes, it's important to get a comprehensive dilated eye exam at least once a year.
Not only does walking help people with type 2 diabetes increase their fitness levels, but it also helps control blood glucose levels and improves the body's ability to use insulin.
Prediabetes means that your blood glucose, or blood sugar, levels are higher than normal but not high enough to be called diabetes. Glucose comes from the foods you eat.
“When it comes to diabetes and obesity, poor sleep is often a factor,” says Brian Wojeck, MD, MPH, a Yale Medicine endocrinologist. Data suggests that sleep disruption affect glycemia, or blood sugar levels, which is relevant because diabetes is a disease in which there is too much sugar in the blood, Dr.
Red flag signs of diabetes symptoms
Feeling extremely hungry or thirsty. Feelings similar to drunkenness. Unusual behaviors, which may also indicate low blood sugar. Infections, bloody or swollen gums, or foot sores.
The 4 Ps of diabetes – polyuria, polydipsia, polyphagia, and sometimes a fourth P – are key signs of high blood sugar. These symptoms have been known for centuries as signs of diabetes mellitus. Learning about the history of these symptoms helps us understand their importance.
10 Silent Symptoms of Diabetes
Common Signs of Uncontrolled Diabetes
Extreme fatigue: When your body can't properly use glucose for energy, you may feel tired all the time. Blurred vision: High blood sugar can cause the lens of your eye to swell, leading to temporary vision changes.
8 Simple Snacks That Won't Spike Your Blood Sugar
Many conditions that mimic diabetes, such as PCOS, hypothyroidism, and Cushing's syndrome, share insulin resistance as a defining feature. The most common cause of insulin resistance is obesity.