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Diabetes - The Basics

Updated: Mar 25, 2022

This topic includes the following; What is Diabetes?, What are the different types of diabetes?, How common is diabetes? What health problems can people with diabetes develop? The Symptoms of Diabetes



Diabetes is a lifelong condition that causes a person's blood sugar level to become too high.

What is Diabetes?

“Diabetes is a disease that occurs when your blood glucose, also called blood sugar, is too high. Blood glucose is your main source of energy and comes from the food you eat.”

Insulin, a hormone made by the pancreas, helps glucose from food get into your cells to be used for energy. Sometimes your body doesn’t make enough—or any—insulin or doesn’t use insulin well. Glucose then stays in your blood and doesn’t reach your cells.

Over time, having too much glucose in your blood can cause health problems. Although diabetes has no cure, you can take steps to manage your diabetes and stay healthy.

What are the different types of diabetes?

The most common types of diabetes are type 1, type 2, and gestational diabetes.

Type 1 diabetes

If you have type 1 diabetes, your body does not make insulin. Your immune system attacks and destroys the cells in your pancreas that make insulin. Type 1 diabetes is usually diagnosed in children and young adults, although it can appear at any age. People with type 1 diabetes need to take insulin every day to stay alive.

Type 2 diabetes

If you have type 2 diabetes, your body does not make or use insulin well. You can develop type 2 diabetes at any age, even during childhood. However, this type of diabetes occurs most often in middle-aged and older people. Type 2 is the most common type of diabetes.

Gestational diabetes

Gestational diabetes develops in some women when they are pregnant. Most of the time, this type of diabetes goes away after the baby is born. However, if you’ve had gestational diabetes, you have a greater chance of developing type 2 diabetes later in life. Sometimes diabetes diagnosed during pregnancy is actually type 2 diabetes.

Impaired glucose tolerance and impaired fasting glycaemia

Impaired glucose tolerance (IGT) and impaired fasting glycaemia (IFG) are intermediate conditions in the transition between normality and diabetes. People with IGT or IFG are at high risk of progressing to type 2 diabetes, although this is not inevitable

What health problems can people with diabetes develop?

“Over a long period of time, high glucose levels in your blood can seriously damage your heart, your eyes, your feet and your kidneys.

Over time, high blood glucose leads to problems such as

  • heart disease

  • stroke

  • kidney disease

  • eye problems

  • dental disease

  • nerve damage

  • foot problems

Symptoms of Diabetes

Some of the signs and symptoms of type 1 diabetes and type 2 diabetes are:

  • Increased thirst

  • Frequent urination

  • Extreme hunger

  • Unexplained weight loss

  • Presence of ketones in the urine (ketones are a by-product of the breakdown of muscle and fat that happens when there's not enough available insulin)

  • Fatigue

  • Irritability

  • Blurred vision

  • Slow-healing sores

  • Frequent infections, such as gums or skin infections and vaginal infections

Further Actions

See your doctors if you are experiencing any of the symptoms above

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