Have you ever felt really tired after eating too much candy? That’s because your body is working hard to handle all that sugar. Now, think about whether your body couldn’t handle sugar properly every single day. That’s what happens with diabetes. It’s when your body can’t control the amount of sugar (we call it glucose) in your blood. This sugar comes from the food you eat, and your body needs it for energy, just like a car needs gas to run.
What Happens in Your Body When You Have Diabetes
Your body has a special helper called insulin. Think of insulin like a key that opens the door to your body’s cells. When you eat food, it turns into glucose and goes into your bloodstream. The insulin key opens the cell doors so the glucose can go inside and give you energy to play, study, and do everything you love. But when someone has diabetes, something goes wrong with this system.
Sometimes your body stops making insulin. Other times, it makes insulin, but the key doesn’t work right anymore. When this happens, the glucose stays stuck in your blood. It’s like having a room full of food, but you can’t open the door to get to it. Your cells get hungry for energy, while too much sugar floats around in your blood. This extra sugar can hurt different parts of your body over time, like your eyes, heart, kidneys, and feet.
Your pancreas is the organ that makes insulin. It’s a small organ that sits behind your stomach. In some people, the pancreas stops working right, and that’s when diabetes starts. According to the Centers for Disease Control and Prevention, about 38 million adults in the United States have diabetes, and many don’t even know it yet.
Why Knowing Different Types Matters
Here’s something most people don’t know: diabetes isn’t just one disease. It’s actually a family of different conditions that all cause high blood sugar. Some types happen when you’re a baby, others when you’re a kid, and some when you’re all grown up. Some types you’re born with, and others you can get from your lifestyle choices. The treatment is different for each type too.
I remember talking to my neighbor who thought all diabetes was the same. She was shocked to learn that her friend with Type 1 diabetes needed insulin shots every day, while another friend with Type 2 diabetes could manage it with diet changes and pills. Understanding which type you have helps doctors give you the right treatment. It’s like knowing if you have a cold or the flu—both make you sick, but the medicine is different.
The Three Main Types of Diabetes
When most doctors talk about diabetes, they focus on three main types. These are the ones you’ll hear about most often, and they affect millions of people around the world.
Type 1 Diabetes
Type 1 diabetes is like your body’s defense system getting confused and attacking itself. Your immune system is supposed to fight off bad germs and viruses, right? But in Type 1 diabetes, it makes a big mistake. It attacks the special cells in your pancreas that make insulin. These are called beta cells or islet cells. Once they’re destroyed, your body can’t make any insulin at all.
This type usually shows up in kids and young people, but here’s the thing—adults can get it too. The symptoms come on fast, sometimes in just a few weeks. You might feel super thirsty all the time, need to pee a lot, feel very tired, and lose weight even though you’re eating normally. According to a study published by the National Institute of Diabetes and Digestive and Kidney Diseases, fewer than 1.6 million people in the U.S. have Type 1 diabetes.
People with Type 1 diabetes need to take insulin every single day to stay alive. There’s no cure yet, and we don’t know how to prevent it. Some use an insulin pump that gives them insulin throughout the day, while others give themselves insulin shots several times a day. They also need to check their blood glucose levels often to make sure they’re not too high or too low.
There are actually subtypes of Type 1. Type 1a is an autoimmune disease where your body makes antibodies that attack your pancreas. Type 1b also comes on suddenly, but it’s not autoimmune. It happens mostly in people from Asia or sub-Saharan Africa.
Type 2 Diabetes
Type 2 diabetes is completely different. Your body still makes insulin, but there are two problems. First, your cells become stubborn—they don’t respond to insulin like they should. This is called insulin resistance. It’s like the key (insulin) is there, but the lock on the door (cell) is jammed. Second, over time, your pancreas gets tired and can’t make enough insulin to overcome this resistance.
This is by far the most common type. In fact, about 90 to 95 percent of all diabetes cases are Type 2, according to the CDC. It usually develops slowly over many years. You might not even notice symptoms at first, which is why many people have it without knowing.
The biggest risk factors are being overweight or having obesity, not exercising enough, and having family members with diabetes. Your BMI (body mass index) plays a big role. The higher your BMI, the harder your body has to work to make insulin effective. It’s more common in adults, but sadly, more and more kids and teenagers are getting Type 2 diabetes now because of unhealthy eating and not enough physical activity.
The good news? You can often manage Type 2 diabetes without insulin, at least at first. Many people control it with lifestyle changes like eating better, exercising more, and losing some weight. Some need oral medication (pills) to help their body use insulin better. Only later, if the pancreas really can’t keep up, might they need insulin shots.
I once met a man who reversed his pre-diabetes by walking 30 minutes every day and cutting out sugary drinks. His doctor was amazed at how much his blood glucose levels improved in just three months. It showed me that small changes really do make a big difference with Type 2.
Gestational Diabetes During Pregnancy
What Is Gestational Diabetes
Gestational diabetes is a special type that only happens during pregnancy. If a woman who never had diabetes before suddenly gets high blood sugar while she’s pregnant, that’s gestational diabetes. It happens because pregnancy hormones can make it harder for insulin to work properly. Your body needs more insulin when you’re pregnant, and sometimes your pancreas just can’t keep up with the extra demand.
Doctors usually test for it between weeks 24 and 28 of pregnancy. Most of the time, gestational diabetes goes away after the baby is born. But here’s what many people don’t know: having it once means you’re at higher risk for getting Type 2 diabetes later in your life. You need to be extra careful and get tested regularly, even after your baby arrives.
Risks for Mom and Baby
Gestational diabetes can cause problems for both mom and baby if it’s not managed well. The baby might grow too big, which makes delivery harder. After birth, the baby could have low blood sugar and need special care. Kids born to moms with gestational diabetes are also more likely to have obesity as they grow up and develop Type 2 diabetes when they’re older.
For the mom, high blood sugar during pregnancy increases the risk of needing a C-section. It can also raise blood pressure and cause other pregnancy complications. But with proper care, healthy eating, and sometimes medication, most women with gestational diabetes have healthy pregnancies and healthy babies. The key is catching it early and following your doctor’s advice.
Rare and Lesser-Known Types of Diabetes
Now we’re getting into types that most people never hear about. These are rarer, but they’re just as important for the people who have them.
LADA (Type 1.5 Diabetes)
LADA stands for Latent Autoimmune Diabetes in Adults. Some people call it Type 1.5 diabetes because it’s like a mix between Type 1 and Type 2. It’s an autoimmune condition like Type 1, where your body attacks your insulin-making cells. But it happens in adults and progresses much more slowly than regular Type 1.
Here’s what makes LADA tricky: people with LADA are often first diagnosed with Type 2 diabetes because they’re adults and their symptoms come on gradually. They might be treated with pills for a while, but those stop working as their body continues to destroy insulin-producing cells. Eventually, they need insulin. The Diabetes UK organization notes that it’s not officially classified as a separate type yet, but research is ongoing.
If you’re an adult diagnosed with diabetes but you’re not overweight and diet changes don’t seem to help much, doctors might test for LADA by checking for certain antibodies in your blood.
MODY and Neonatal Diabetes
MODY stands for Maturity-Onset Diabetes of the Young. This is a genetic form of diabetes caused by a mutation in a single gene. If one parent has the mutation, each child has a 50 percent chance of getting it. Kids with MODY usually develop diabetes before age 25, no matter their weight or lifestyle.
What’s really important about MODY is that it often gets misdiagnosed as Type 1 or Type 2. But the treatment can be totally different. Some people with MODY can manage it with specific pills and don’t need insulin at all. That’s why getting the right diagnosis is so crucial.
Neonatal diabetes happens in babies within their first six months of life. It’s not the same as Type 1 diabetes in older kids. It can be temporary (goes away) or permanent (stays for life). Like MODY, it’s usually caused by genetic changes. Babies with neonatal diabetes need very special care from doctors who understand this rare condition.
Other Special Types You Should Know About
Type 3c Diabetes
Type 3c diabetes develops when another disease damages your pancreas. If your pancreas is hurt by pancreatitis (inflammation of the pancreas), pancreatic cancer, cystic fibrosis, or haemochromatosis (too much iron in your body), it might not be able to make insulin anymore. People who have part or all of their pancreas removed in surgery can also develop Type 3c.
This type is different from Type 1 and Type 2 because it’s caused by physical damage to the organ. Treatment depends on how much damage there is. Some people need insulin, while others can manage with other medications. It’s often harder to control than other types because the damaged pancreas can’t regulate other important hormones either.
Steroid-Induced and Cystic Fibrosis Diabetes
Steroid-induced diabetes can happen when people take steroid medications (like corticosteroids) for other health problems. These medicines can make your body resistant to insulin. It’s more common in people who already have risk factors for Type 2 diabetes. Usually, the diabetes gets better when you stop taking the steroids, but not always.
Cystic fibrosis diabetes is special because it has features of both Type 1 and Type 2, but it’s neither one. Cystic fibrosis is a genetic disease that causes thick, sticky mucus to build up in different organs, including the pancreas. This damages the pancreas over time, making it hard to produce insulin. It’s the most common type of diabetes in people with cystic fibrosis.
The Newly Recognised Type 5 Diabetes
What Is Type 5 Diabetes
Here’s something brand new that you probably haven’t heard about yet. In April 2025, the International Diabetes Federation officially recognized Type 5 diabetes as a distinct type. This is huge news in the diabetes world! Type 5 diabetes is also called malnutrition-related diabetes.
Unlike other types, Type 5 diabetes is caused by chronic undernutrition, especially during childhood or adolescence. When kids don’t get enough food and nutrients for a long time, it can permanently damage their pancreas and how their body handles glucose. It’s different from Type 1 (which is autoimmune) and Type 2 (which is often related to obesity). Type 5 is related to not having enough food and nutrients.
Who Gets Type 5 Diabetes
Type 5 diabetes mostly affects people in Asia and Africa, where poverty and food insecurity are more common. The IDF estimates that between 20 and 25 million people worldwide have this type. That’s a lot of people! Most of them live in developing countries where malnutrition during childhood is a serious problem.
People with Type 5 diabetes tend to be young and thin, but they have high blood sugar, like other types of diabetes. The condition develops because their bodies never got the nutrition they needed during critical growing years. This damaged their pancreas permanently. Treatment usually involves insulin and careful nutrition planning to address both the diabetes and any ongoing nutritional deficiencies.
This recognition is important because it helps doctors understand that diabetes isn’t always about eating too much or being overweight. Sometimes it’s about not having enough healthy food, especially when you’re growing up.
Prediabetes: The Warning Sign
Understanding Your Risk
Prediabetes isn’t technically diabetes, but it’s like a loud warning alarm. Your blood glucose levels are higher than normal, but not high enough yet to be called Type 2 diabetes. Think of it as standing on the edge of a cliff—you haven’t fallen off yet, but you’re dangerously close.
Here’s the scary part: according to the CDC, about 38 percent of U.S. adults have prediabetes. That’s more than 1 in 3 people! Even worse, 8 in 10 people with prediabetes don’t even know they have it. They feel fine, so they don’t think anything is wrong. But inside their bodies, damage is already starting to happen. Prediabetes increases your risk for heart disease, stroke, and, of course, developing full Type 2 diabetes.
Simple Steps to Prevent Diabetes
The amazing news about prediabetes is that you can reverse it. You’re not stuck with it forever. Small lifestyle changes can bring your blood sugar back down to normal levels and prevent Type 2 diabetes from ever developing. I’ve seen so many people do this successfully.
The most powerful changes are simple ones. Lose just 7 to 10 percent of your body weight if you’re overweight. That’s only 14 to 20 pounds for someone who weighs 200 pounds. Start walking, swimming, or doing any physical activity you enjoy for 30 minutes most days of the week. Eat more vegetables, whole grains, and lean proteins. Cut back on sugary drinks and processed snacks.
According to the CDC’s National Diabetes Prevention Program, people who make these lifestyle changes can cut their risk of developing Type 2 diabetes by 58 percent. For people over 60, it’s even better—71 percent! These aren’t huge, impossible changes. They’re small, doable steps that add up to big results.
Get tested if you’re over 35, have a family history of diabetes, are overweight, or had gestational diabetes. A simple A1C test or glucose test from your doctor can tell you if you have prediabetes. The earlier you know, the sooner you can take action and protect your health.
Conclusion
So, how many types of diabetes are there? The answer depends on how you count them. There are three main types—Type 1, Type 2, and gestational diabetes—that account for most cases. But there are also many rare and special types like LADA, MODY, neonatal diabetes, Type 3c, steroid-induced diabetes, cystic fibrosis diabetes, and the newly recognized Type 5 diabetes. Some experts even talk about different subtypes within the main categories.
What matters most is understanding that diabetes isn’t one simple condition. It’s a family of related conditions that all cause high blood sugar, but for different reasons. Each type needs its own approach to treatment. Some need insulin injections, some need pills, and some can be managed with lifestyle changes alone. Getting the right diagnosis means getting the right treatment.
If you or someone you love has diabetes, learn which type it is. Ask questions. Work with your doctor to create a treatment plan that fits your specific situation. And if you’re at risk or have prediabetes, know that you have the power to make changes that could prevent diabetes from ever developing. Small steps today can protect your health for years to come.
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FAQs
Can you have more than one type of diabetes?
It’s very rare, but technically possible in some unusual situations. For example, someone with Type 1 diabetes could also develop insulin resistance (a feature of Type 2) if they become very overweight. Or someone might have MODY (a genetic type) and then develop steroid-induced diabetes from medications. However, most people have just one type. What’s more common is being misdiagnosed with one type when you actually have another, which is why proper testing and diagnosis are so important.
Which type of diabetes is most common?
Type 2 diabetes is by far the most common, making up about 90 to 95 percent of all diabetes cases. Out of the roughly 38 million Americans with diabetes, the vast majority have Type 2. Type 1 diabetes affects fewer than 1.6 million people in the U.S. All the other types combined make up only about 1.5 to 2 percent of cases. Type 2 is so common because it’s linked to lifestyle factors like being overweight, not exercising, and eating unhealthy foods—issues that affect millions of people.
Is diabetes curable?
Unfortunately, there is no cure for diabetes yet, though scientists are working hard to find one. Type 1 diabetes is a lifelong condition that currently requires daily insulin. Type 2 diabetes can sometimes be put into remission through major lifestyle changes like significant weight loss, healthy eating, and regular exercise, but the tendency toward diabetes remains. Gestational diabetes usually goes away after the baby is born, but it increases your risk for Type 2 later. Some rare types like steroid-induced diabetes might improve when you stop taking the medication that caused it. While diabetes can be managed very effectively, most types cannot be completely cured with current medicine.
At what age can you get diabetes?
Diabetes can happen at any age, from newborn babies to elderly people. Neonatal diabetes appears in babies under six months old. Type 1 diabetes most often shows up in children and young adults, but adults can get it too at any age. Type 2 diabetes used to be called “adult-onset diabetes” because it mainly affected people over 40, but now children, teenagers, and young adults are getting it in increasing numbers due to obesity and inactive lifestyles. MODY usually develops before age 25. Gestational diabetes only happens during pregnancy. The bottom line: diabetes doesn’t follow strict age rules, which is why everyone should be aware of the symptoms and risk factors.
How do I know which type of diabetes I have?
Your doctor determines which type you have through several tests and factors. They’ll look at your age when symptoms started, how fast they came on, your weight, and your family history. Blood tests can check for antibodies that indicate Type 1 or LADA. An A1C test shows your average blood sugar over the past few months. C-peptide tests measure how much insulin your body is making. Genetic tests can identify MODY or neonatal diabetes. If you were diagnosed with Type 2 but you’re not overweight, don’t respond well to typical Type 2 treatments, or have a strong family history of young-onset diabetes, ask your doctor about testing for other types. Getting the right diagnosis is crucial because each type requires different treatment approaches.
