What is type 1 diabetes?

Type 1 diabetes is a disorder of the pancreas. The organ doesn't make enough insulin. It is different from type 2 diabetes. People with type 1 diabetes don't make any insulin at all. The immune system destroys important cells in the insulin production process. The onset often happens in childhood.
People with type 2 diabetes make some insulin, but the amount they make decreases over time. It usually comes on in adulthood. Eventually, they may stop producing it altogether.
However, type 1 diabetes can not be reversed, while symptoms of type 2 diabetes may be ameliorated with lifestyle changes in some cases, if they are made early enough in the progression of the disease.
Main symptoms
While most people get type 1 diabetes in childhood or as a teenager, it can happen at any age. Symptoms include:
- Peeing a lot, especially at night
- Extreme thirst
- Losing weight suddenly
- Extreme hunger
- Blurred vision
- Tingling hands and feet
- Dry skin
- Feeling tired
- Lowered immune function
- Digestive issues and stomach pain
Main causes
Type 1 diabetes is caused by an auto-immune reaction. The immune system destroys beta cells—the cells that make insulin. This removes the body's ability to produce it. Diet and lifestyle are not a factor in type 1 diabetes.
Who can get it?
Anyone can get type 1 diabetes. Some people have a genetic predisposition for type 1 diabetes. However, just because you have a family history of the disease doesn't mean you will get it.
Tests for type 1 diabetes
There are a few tests a doctor may perform to diagnose type 1 diabetes.
Antibody test
This test looks for specific antibodies that the body makes when it attacks the beta cells in your pancreas. This test is usually given to direct relatives of people with type 1 diabetes because it can help to predict whether or not someone may develop type 1 diabetes up to one year before they have any symptoms.
Genetic test
This test may also be given to people with close relatives who have type 1 diabetes. It can help to identify if someone has a genetic predisposition to getting the disease.
Fasting plasma glucose test
This test checks your blood sugar levels. The fasting test is taken after you have not eaten anything for eight hours. There is another non-fasted version of this test. Either one can give a snapshot of blood sugar levels to help determine if you have diabetes.
Hemoglobin A1c test
This test measures how much glucose is found in your red blood cells. High glucose levels shown in this test can be a sign of type 1 diabetes.

SLIDESHOW
Type 1 Diabetes (T1D): Symptoms, Causes, Treatments, Vs. Type 2 See SlideshowTreatments for type 1 diabetes
Medications
People with type 1 diabetes must take insulin as directed. Some people may use medical devices like an insulin pump so they don't have to inject themselves with insulin multiple times a day. Each person's schedule of taking insulin is tailored to their particular schedule and habits. Your doctor will help you figure out an insulin schedule that works for you.
Home care
Many people with type 1 diabetes benefit from following a meal plan to balance their insulin needs with how many carbohydrates they eat.
They must also monitor their blood sugar levels to make sure they don't get too high or too low. People with type 1 diabetes can test using a drop of blood obtained through a finger-stick, or a wearable device called a continuous glucose monitor.
People with type 1 diabetes should wear a medical identification bracelet so first responders will know how to treat them during a medical emergency.
Complications of treatment
Taking insulin must be balanced with how many carbohydrates you eat. If you mismatch the number of carbs with the amount of insulin given, your blood sugar can get too high or too low.
Improper management of diabetes can result in long term health effects like:
- Damage to blood vessels
- Heart attack
- Stroke
- Kidney damage
- Reduced circulation to feet. This can result in sores that may not heal, requiring amputation
- Blindness (diabetic retinopathy)
Health News
- Chinese Company May Help Ease U.S. Shortage of Cancer Drug
- Opdivo Could Boost Outcomes for People Battling Hodgkin Lymphoma
- More U.S. Kids, Teens Are Getting Weight-Loss Surgeries
- Could a Nitroglycerin Patch Ease Hot Flashes?
- One Form of Menopause Hormone Therapy Might Raise Blood Pressure
More Health News »
Health Solutions From Our Sponsors
Centers for Disease Control and Prevention: "Diabetes Symptoms."
Centers for Disease Control and Prevention: "Type 1 Diabetes."
Joslin Diabetes: "The Difference Between Type 1 and Type 2."
Kids Health: "Treating Type 1 Diabetes."
Mayo Clinic: "Amputation and diabetes: How to protect your feet."
National Health Service: "Diabetic retinopathy."
Victoria State Government Better Health Channel: "Diabetes - long-term effects."
Top Can Type 1 Diabetes be Cured Related Articles
Can You Live a Long Life With Autoimmune Disease?
You may be concerned that your condition will affect your projected lifespan. Most people can expect to live a long life with an autoimmune disease, though.Body Blood Sugar Levels
High blood sugar can be a sign of diabetes or prediabetes. The drugs that treat it sometimes cause low blood sugar too. WebMD helps guide you through the effects of both.Diabetes Foot Problems
Learn more about diabetes related foot problems. For people with diabetes, too much glucose in the blood can cause serious foot complications such as nerve damage, infection, and ulcers. Find tips for proper foot care to help prevent serious complications.Diabetes Diet Plans
Discover the best and worst meals for diabetes-savvy dining. See how to avoid carbs and control your blood sugar with healthier meal combinations that retain all the foods and flavors you love.Diabetes Symptoms in Men
Early symptoms of diabetes are different in men, such as low testosterone. In many cases, prediabetes that will progress to type 2 diabetes if it is not treated early.Diabetes Symptoms in Women
Diabetes symptoms in women include vaginal itching, pain, or discharge, loss of interest or pain after having sex, polycystic ovarian syndrome (POS), and urinary tract infections or UTIs (which are more common in women. Symptoms of diabetes that are the same in women and men are excessive thirst and hunger, bad breath, and skin infections, darkening of skin in areas of body creases (acanthosis nigricans), breath odor that is fruity, sweet, or acetone, and tingling or numbness in the hands or feet, blurred vision, fatigue, tingling or numbness in the hands or feet, wounds that heal slowly, irritability, and weight loss or gain.Complications of type 1 and type 2 diabetes are the same, for example, skin, eye, and circulation problems, low blood sugar (hypoglycemia), high blood sugar (hyperglycemia), ketoacidosis, and amputation. If diabetes is not managed a person may not survive.
What Is Microsporidiosis?
Microsporidiosis is an infection caused by the microsporidia parasite. The disease is uncommon in people with normal immune systems. Symptoms in people with immune deficiency include diarrhea, malabsorption, gallbladder disease, cough, labored breathing, urinary tract infection, bowel perforation and keratoconjunctivitis. Microsporidiosis treatment depends on the site of infection and the species of microsporidia involved.semaglutide
Semaglutide is a medication used in the treatment of type 2 diabetes mellitus and for chronic weight management, along with physical exercise, dietary restrictions, and lifestyle changes. Semaglutide is used to control blood sugar levels when other commonly prescribed medications do not control the sugar levels adequately in type 2 diabetes, but cannot be used to treat type 1 diabetes or diabetic ketoacidosis, a complication of diabetes. Common side effects of semaglutide include nausea, vomiting, diarrhea, constipation, abdominal pain, indigestion (dyspepsia), abdominal distension, decrease in appetite, belching (eructation), gas (flatulence), gastritis, gastroenteritis, viral gastroenteritis, gastroesophageal reflux disease (GERD), gallstones (cholelithiasis), headache, fatigue, dizziness, low blood glucose level (hypoglycemia), severe hypoglycemia, diabetic retinopathy, and others. Do not take if breastfeeding.Type 1 Diabetes (Symptoms, Causes, Diet, Treatment, Life Expectancy)
Type 1 diabetes mellitus (juvenile) is an auto-immune disease with no known cause at this time, although there are a few risk factors. Symptoms of type 1 diabetes include frequent urination, unintentional weight loss, dry and itchy skin, vision problems, wounds that heal slowly, and excessive thirst. Type 1 diabetes is diagnosed with blood tests. A healthy lifestyle and controlling blood glucose levels can improve life expectancy.Type 1 Diabetes
What is type 1 diabetes? There are new treatments for juvenile diabetes, and more people with diabetes can be treated than ever before. Learn the symptoms of T1D, the causes, and find ways to control your blood glucose levels naturally.Type 1 Diabetes Quiz
What are the causes of type 1 diabetes? Take this quiz and challenge your knowledge of causes, symptoms, diagnosis and treatments for this common condition, formerly known as juvenile diabetes.Type 1 vs. Type 2 Diabetes: Differences
Diabetes mellitus is a metabolic condition in which a person's blood sugar (glucose) levels are too high. Over 29.1 million children and adults in the US have diabetes. Of that, 8.1 million people have diabetes and don't even know it. Type 1 diabetes (insulin-dependent, juvenile) is caused by a problem with insulin production by the pancreas. Type 2 diabetes (non-insulin dependent) is caused by:
Eating a lot of foods and drinking beverages with simple carbohydrates (pizza, white breads, pastas, cereals, pastries, etc.) and simple sugars (donuts, candy, etc.)
- Consuming too many products with artificial sweeteners (We found out that they are bad for us!)
- Lack of activity
- Exercise
- Stress
- Genetics
While the signs and symptoms of both types of diabetes are the same, which include:
- Increased urination
- Increased hunger
- Increased thirst
- Unexplained weight loss.
However, the treatments are different. Type 1 diabetes is insulin dependent, which means a person with this type of diabetes requires treatment with insulin. People with type 2 diabetes require medication, lifestyle changes like eating a healthy diet, and getting regular exercise.
What Are the Early Signs of Diabetes?
The early signs of diabetes depend on if one has type 1 or type 2 diabetes. Type 1 diabetes usually occurs in children, whereas type 2 diabetes is prevalent in adults.What Country Has the Most Type 1 Diabetics?
According to research, type 1 diabetes is most common among non-Hispanic Caucasians, followed by African Americans and Hispanic Americans. The highest incidence rates are found in Finland and Italy and the lowest rates are found in South American countries, such as Venezuela and Brazil and Asian countries, such as China or Thailand.Which is Worse - Type 1 or Type 2 Diabetes?
Learn about the similarities and differences between Type 1 and Type 2 Diabetes.