What are the symptoms of diabetes
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These studies suggest that diabetes symptoms include hyperglycemia, gastrointestinal issues, and long-term organ damage, with type 2 diabetes often presenting without symptoms for long periods.
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Symptoms of Diabetes
Diabetes is a group of metabolic diseases characterized by chronic hyperglycemia due to defects in insulin secretion, insulin action, or both. This condition leads to a variety of symptoms and complications that can significantly impact a person's quality of life.
Common Symptoms of Hyperglycemia
Polyuria and Polydipsia
One of the hallmark symptoms of diabetes is polyuria, which is frequent urination. This occurs because the kidneys are trying to excrete excess glucose from the blood through urine. This leads to polydipsia, or excessive thirst, as the body attempts to replenish the lost fluids .
Weight Loss and Polyphagia
Unintentional weight loss is another common symptom, often accompanied by polyphagia, or increased hunger. Despite eating more, individuals with diabetes may lose weight because their bodies cannot effectively use glucose for energy, leading to the breakdown of fat and muscle for fuel .
Blurred Vision
Blurred vision is a frequent complaint among those with diabetes. High blood sugar levels can cause the lens of the eye to swell, leading to temporary changes in vision .
Additional Symptoms
Fatigue and Weakness
Many individuals with diabetes report feeling fatigued and weak. This is due to the body's inability to use glucose efficiently, leading to a lack of energy.
Infections and Impaired Healing
Chronic hyperglycemia can impair the immune system, making individuals more susceptible to infections. Common infections include urinary tract infections and skin infections. Additionally, wounds and sores may heal more slowly .
Gastrointestinal Symptoms
Gastrointestinal issues such as nausea, vomiting, and diarrhea are also prevalent among people with diabetes. These symptoms can be attributed to autonomic neuropathy, which affects the nerves controlling the digestive system.
Acute Complications
Diabetic Ketoacidosis (DKA)
In cases of uncontrolled diabetes, particularly type 1 diabetes, individuals may develop diabetic ketoacidosis (DKA). This life-threatening condition is characterized by high blood sugar levels, ketones in the urine, and symptoms such as abdominal pain, nausea, vomiting, and confusion .
Hyperosmolar Hyperglycemic State (HHS)
Another severe complication is the hyperosmolar hyperglycemic state (HHS), more common in type 2 diabetes. It involves extremely high blood sugar levels without significant ketone production, leading to severe dehydration, confusion, and even coma .
Long-term Complications
Retinopathy and Nephropathy
Long-term complications of diabetes include retinopathy, which can lead to vision loss, and nephropathy, which can progress to renal failure. These complications arise from damage to the small blood vessels in the eyes and kidneys, respectively .
Neuropathy
Peripheral neuropathy, causing numbness and pain in the extremities, and autonomic neuropathy, affecting bodily functions such as digestion and heart rate, are also common. These conditions increase the risk of foot ulcers, amputations, and other severe complications .
Cardiovascular Disease
Individuals with diabetes have a higher incidence of cardiovascular diseases, including atherosclerosis, heart attacks, and strokes. This is due to the combined effects of hyperglycemia, hypertension, and abnormalities in lipid metabolism .
Conclusion
Diabetes presents a wide array of symptoms ranging from frequent urination and excessive thirst to severe complications like diabetic ketoacidosis and cardiovascular diseases. Early recognition and management of these symptoms are crucial in preventing long-term damage and improving the quality of life for individuals with diabetes.
Sources and full results
Most relevant research papers on this topic
2
Diagnosis and classification of diabetes mellitus.
2
592 Citations
2005