Diabetes is a chronic condition that affects millions worldwide, posing significant health risks if left undiagnosed.
Recognizing symptoms early is crucial for timely intervention and management, as untreated diabetes can lead to severe complications.
This article explores the key early warning signs of diabetes, providing insight into its detection and management for improved health outcomes.
What is Diabetes?
Diabetes is a chronic condition characterized by elevated levels of sugar (glucose) in the blood, resulting from the body’s inability to produce enough insulin or effectively use the insulin it produces. This imbalance can lead to serious health complications if not managed properly.
Early Warning Signs of Diabetes
- Increased Thirst
- Frequent Urination
- Blurred Vision
- Increased Hunger
- Extreme Fatigue
- Dry Mouth
- Itchy Skin
- Slow Wound Healing
- Numbness in the Hands or Feet
- Patches of Darker Skin
Watch this video or keep reading to learn more about the early warning signs and symptoms of diabetes.
Increased Thirst
Increased thirst, medically known as polydipsia, is a common early warning sign of diabetes. This symptom arises when excess sugar builds up in the bloodstream, causing the kidneys to work harder to filter and absorb the sugar.
When the kidneys cannot keep up, the excess sugar is excreted into the urine, dragging fluids from the tissues with it.
This process leads to dehydration, prompting the body to require more fluids to replenish lost water, resulting in increased thirst. People experiencing this symptom might find themselves drinking more water than usual yet still feeling thirsty.
Frequent Urination
Frequent urination, or polyuria, is closely linked to the increased thirst seen in diabetes. As individuals with diabetes intake more liquids to satisfy their thirst, they naturally need to urinate more often.
Additionally, when blood sugar levels are high, the kidneys attempt to expel the excess glucose through urine, which also contributes to an increase in urination frequency.
This can often lead to a disruptive cycle of drinking and urinating, including frequent trips to the bathroom at night, which is known as nocturia.
This symptom is especially noticeable if there’s a significant increase in the volume of urine or a change in the urination pattern.
Blurred Vision
Blurred vision in the context of diabetes is often caused by an effect called diabetic retinopathy, where high blood sugar levels lead to damage in the blood vessels of the retina.
Before these more severe complications arise, fluctuating blood sugar levels can cause the lens of the eye to swell, altering your ability to see.
This symptom can manifest as difficulty in focusing, cloudy or distorted vision, and can fluctuate throughout the day. It’s essential to address these changes early, as prolonged high blood sugar can lead to permanent vision damage or blindness.
Increased Hunger
Increased hunger, also known as polyphagia, is another typical sign of diabetes. When the body is not able to effectively use insulin to help glucose enter the cells as a source of energy, it mistakenly thinks it’s starving and signals for more food intake.
This insulin resistance or the insufficient production of insulin in type 1 diabetes means glucose stays in the bloodstream, and the cells do not receive the energy they need, thus perpetuating the cycle of hunger.
Even after eating, this lack of cellular glucose uptake can leave individuals feeling hungry shortly after meals.
Extreme Fatigue
Extreme fatigue or feeling unusually tired is a frequent symptom of diabetes. It results from an inefficiency in how the body uses glucose for energy.
When insulin levels are inadequate, or cells resist insulin, glucose cannot enter the cells effectively, leaving you low on energy. Even though the bloodstream may have high glucose levels, the cells’ inability to absorb glucose means they starve for energy, leading to persistent tiredness.
This type of fatigue is not relieved by sleep or rest, making everyday activities feel unusually challenging and exhausting.
Dry Mouth
Dry mouth, known medically as xerostomia, often accompanies the increased thirst seen in diabetes. High blood sugar levels lead to dehydration, which can reduce saliva production in the mouth.
Saliva is crucial for moistening and cleansing the mouth, and its reduction can lead to a dry, uncomfortable feeling in the mouth and throat.
A dry mouth is not only uncomfortable but can also increase the risk of dental health problems, including gum disease, tooth decay, and mouth infections, as saliva helps to protect teeth and gums by neutralizing acids produced by bacteria in the mouth.
Itchy Skin
Itchy skin in individuals with diabetes can be a direct consequence of several related conditions. Firstly, poor circulation and the resultant dehydration from frequent urination can dry out the skin, making it itchy.
Secondly, high blood sugar levels can cause dry skin and promote yeast and fungal infections, which further irritate the skin. Additionally, diabetes can lead to neuropathy, which affects nerves that control oil and moisture in the skin, exacerbating dryness and itching.
Regular moisturizing and managing blood sugar levels are essential to alleviate this symptom and prevent skin breakdown or infection.
Slow Wound Healing
Slow wound healing is a notable sign of diabetes, primarily due to the impact of high blood sugar levels on circulation and the immune system. Elevated glucose levels can stiffen arteries and cause the narrowing of blood vessels, impairing blood flow.
This reduced blood flow means fewer nutrients and oxygen reach the wound to promote healing. Additionally, high sugar levels impair the function of red and white blood cells involved in healing, leading to a slower and sometimes inadequate healing process.
Infections are more likely when wounds heal slowly, which is why people with diabetes must take extra care of any cuts or injuries.
Numbness in the Hands or Feet
Numbness in the hands or feet, often referred to as diabetic neuropathy, is a common complication in people with diabetes. This condition results from prolonged high blood sugar levels damaging the nerves.
The damage typically affects the peripheral nerves in the extremities, leading to a loss of sensation. This numbness can start as a tingling or burning sensation and gradually lead to a complete lack of feeling, which can increase the risk of injuries going unnoticed and becoming infected.
Regular monitoring and controlling of blood sugar levels are critical to managing or preventing this symptom.
Patches of Darker Skin
Patches of darker skin, known medically as acanthosis nigricans, can appear in areas of the body where there are skin folds and creases, such as the neck, armpits, groin, and under the breasts.
This condition is characterized by velvety, dark patches of skin and is commonly associated with insulin resistance, a hallmark of Type 2 diabetes. These patches may also have a thicker texture than the surrounding skin.
While not harmful in themselves, they often serve as an early warning sign of diabetes, prompting further investigation and management of blood sugar levels to prevent further complications.
Final Thoughts
Identifying and responding to the early warning signs of diabetes can make a substantial difference in managing the condition and maintaining a high quality of life.
Symptoms like increased thirst, frequent urination, blurred vision, and unexplained fatigue should prompt immediate consideration and testing for diabetes.
Early diagnosis allows for the implementation of effective management strategies, including lifestyle adjustments and medical interventions, potentially preventing more severe complications.
Written by:
John Landry is a registered respiratory therapist from Memphis, TN, and has a bachelor's degree in kinesiology. He enjoys using evidence-based research to help others breathe easier and live a healthier life.
References
- Sapra A, Bhandari P. Diabetes. [Updated 2023 Jun 21]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024.