Simple, accurate health tests for the home and the workplace.

Type 2 Diabetes


Paper with words diabetes type 2 and glasses.






Type 2 diabetes, also known as non insulin dependent diabetes, is the most common type of diabetes. Type 2 usually appears in older people (over 40) though as levels of obesity in the UK are rising, more and more younger people are being diagnosed.

Type 2 happens when the pancreas fails to produce enough insulin to completely control the levels of glucose in your blood, or when the body cannot use the insulin that it does produce properly.

What causes diabetes?

The cause of diabetes is a mystery, although the following risk factors appear to play a role.

  • A family history of diabetes can increase the risk of the disease developing.
  • You are of African-Caribbean or South Asian origin.
  • People who are overweight or who have a large waist size are particularly likely to develop type 2 diabetes.
  • Women who developed gestational diabetes are more likely to develop type 2 diabetes in later life.

What are the symptoms of diabetes?

Symptoms are similar for both types of diabetes. However, type 1 diabetes may develop in a matter of weeks where as type 2 diabetes can develop gradually, and symptoms may be put down to increasing age. Symptoms you may experience include:

  • Constant thirst and dry mouth.
  • The need to urinate more than usual (especially at night).
  • Weight loss.
  • Genital itching.
  • Extreme tiredness, fatigue and weakness.
  • Tendency to get minor infections e.g. boils or thrush.
  • Blurred vision.
  • Cuts and bruises that are slow to heal.
  • Tingling or numbness of the hands or feet.

How is diabetes diagnosed?

Diabetes is often diagnosed by a doctor during routine urine or blood tests, when the test shows the presence of glucose. If you suspect you might have diabetes your doctor may start by giving you a simple urine test to look for the presence of glucose in your urine. Normally, there should be no sugar in urine but when the levels of glucose in the blood rise above normal, glucose is spilled into the urine by the kidneys. This is why diabetes symptoms, such as excessive urination and genital itching, occur. If sugar is present in urine it is a good indicator of diabetes.

We sell a diabetes screening test on this site, which looks for the presence of sugar (glucose) in urine (to see our full range of diabetic tests click here).

If an initial screening test shows glucose is present in urine then a blood test which measures the actual amount of glucose in the blood will need to be carried out. We have a blood glucose monitoring system available on this website which gives an accurate picture of your blood glucose level at the time of the test. For more information or to buy this test click here.

If the level of glucose present is borderline, your doctor may want you to undergo another blood test which is carried out after fasting overnight. Another test called a HbA1c test which looks at long term sugar levels may also be carried out.

If these tests confirm that you have diabetes you may be referred to a specialised diabetes clinic for help and guidance.

What treatment is available for diabetes?

Type 2 diabetes can often be controlled by eating a healthy diet, quitting smoking and getting regular exercise. If making changes fails to change your glucose levels then you may require medication. The first tablets that are usually given are called metformin and are available under many brand names. Metformin reduces the amount of glucose the liver produces and helps the body respond normally to insulin it can also improve the way muscles use glucose. There are many types of medication available so it might take time to find the one that is best for you. Other medicines you may be prescribed include:

  • Sulfonylurea, there are several types of this medication and they work by boosting your insulin levels.
  • Nateglinide and repaglinide which are similar to sulfonylureas as they also boost your insulin levels.
  • Dipeptidly pepidase 4 inhibitors, also known as incretin enhancers, these work to reduce your blood glucose levels.
  • Pioglitazone increases the sensitivity of your body’s cells to insulin so helping to lower blood glucose.
  • Acarbose works by delaying the absorption of carbohydrates therefore reducing blood glucose levels.

If however, diet and tablets are not enough to control your blood glucose levels, you may need insulin injections. Your doctor will monitor what treatment is most suitable for you.
Make sure you always take your medication at the prescribed times and don’t miss any meals.

You may be advised to test your blood glucose levels to help monitor how foods or activities affect your glucose levels and you will also require regular tests at a diabetic clinic to keep an eye on your blood glucose levels

What complications come from type 2 diabetes?

Diabetes can cause many complications if glucose levels become too high you can experience hyperglycaemia for more detailed information on this click here. If levels are too low you can develop hypoglycaemia for more detailed information on this click here.  Untreated diabetes or diabetes that is not controlled can also cause foot ulcers, vision problems, kidney failure, nerve damage (For more information on diabetes complications click here) and puts you at a higher risk of heart disease or stroke.

How can I prevent getting type 2 diabetes?

You can prevent getting type 2 diabetes by eating a healthy balanced diet and maintaining  a healthy weight. Try reducing your portion sizes and aim to eat at least 5 portions of fruit and vegetables a day. You should aim to get regular exercise, give up smoking and only drink alcohol in moderation,