Type 2 diabetes is often diagnosed years after it starts, because its symptoms can be mild enough to go unnoticed. WHO puts it plainly: symptoms of type 2 diabetes can be mild, may take several years to be noticed, and as a result the disease may be diagnosed several years after onset, after complications have already arisen.

That is the whole argument for screening rather than waiting to feel unwell. The condition is treatable, and its consequences can be avoided or delayed with diet, physical activity, medication, and regular screening for complications. The part that is hard to reverse is the damage done during the years nobody was looking.

Key takeaways

  • It usually announces itself late. Type 2 symptoms can be mild and take several years to notice.
  • More than 95% of people with diabetes have type 2.
  • The global picture is worsening fast. Cases rose from 200 million in 1990 to 830 million in 2022, and adult prevalence went from 7% to 14%.
  • Most people are not treated. 59% of adults aged 30 and over with diabetes were not taking medication for it in 2022.
  • The complications are the reason it matters. Diabetes causes blindness, kidney failure, heart attacks, stroke and lower limb amputation.
  • It is often preventable. Being overweight, insufficient exercise and genetics are the contributing factors WHO names.
  • Early detection is by testing, not by symptoms. Regular check-ups and blood tests are how it is caught in time.

What are the symptoms, and why are they easy to miss?

They are the ordinary ones, and in type 2 they can be mild enough to be explained away for years.

WHO lists feeling very thirsty and needing to urinate more often than usual among the symptoms. In type 1 they tend to appear suddenly. In type 2 they can be mild and may take many years to be noticed, and they are often less marked than in type 1.

The problem is that each symptom has an innocent explanation available, particularly in a hot climate where thirst and frequent drinking are normal. That is exactly why the pattern is missed: nothing about it feels like illness.

Symptoms worth taking to a doctor rather than explaining away, especially together or persisting:

  • thirst that is unusual for you and does not settle
  • urinating more often, particularly waking at night to do so
  • tiredness that is not accounted for
  • weight loss you did not intend
  • blurred vision
  • cuts or infections healing slowly
  • recurrent skin, gum or urinary infections

Why is early diagnosis such a big deal?

Because the damage accumulates silently, and by the time symptoms force the issue, complications may already have started.

WHO’s list of what diabetes causes is not hedged: blindness, kidney failure, heart attacks, stroke and lower limb amputation. Over time it can cause serious damage to the body, especially the nerves and blood vessels.

The mortality picture is worth knowing. In 2021 diabetes was the direct cause of 1.6 million deaths, and 47% of all deaths due to diabetes occurred before the age of 70. A further 530,000 kidney disease deaths were caused by diabetes, and high blood glucose causes around 11% of cardiovascular deaths. Since 2000, mortality rates from diabetes have been rising, at a time when death rates from the main noncommunicable diseases as a group have been falling.

WHO’s guidance on catching it is simple: the best way to detect diabetes early is to get regular check-ups and blood tests with a healthcare provider. Not to monitor yourself for symptoms.

Who is most at risk?

People who are overweight, not getting enough exercise, or who have a family history. Those are the three contributing factors WHO names for type 2.

Two additional points matter for this region.

First, prevalence has been rising more rapidly in low- and middle-income countries than in high-income ones, and the overall rise is steep everywhere: adult prevalence doubled from 7% in 1990 to 14% in 2022.

Second, type 2 was formerly called adult onset, and until recently was seen only in adults. WHO notes it is now occurring increasingly frequently in children. Anyone treating it as strictly a condition of later life is working from an outdated picture.

If several risk factors apply to you, that is an argument for asking about a blood test at your next appointment rather than waiting for a reason.

What are the treatments?

Diet and activity first, then medication, and the choice of medicine has widened considerably.

WHO frames the treatable side clearly: diabetes can be treated and its consequences avoided or delayed with diet, physical activity, medication, and regular screening and treatment for complications. Prevention or delay of type 2 comes down to a healthy diet, regular physical activity, maintaining a normal body weight, and avoiding tobacco.

The medicine groups you are most likely to encounter:

  • Metformin, usually the first medicine, which reduces the glucose the liver releases and improves the body’s response to insulin.
  • DPP-4 inhibitors such as sitagliptin and linagliptin.
  • SGLT2 inhibitors such as empagliflozin and dapagliflozin, which increase the glucose passed in urine.
  • Sulphonylureas such as glimepiride, glibenclamide and glipizide, which prompt the pancreas to release more insulin. These can cause low blood sugar, which matters for driving and for fasting.
  • Pioglitazone, which improves insulin sensitivity.
  • GLP-1 medicines such as semaglutide.
  • Insulin, used in type 2 where other treatments are not enough.

Which of these suits you depends on your other conditions, your weight, your kidney function and your risk of hypoglycaemia. It is a clinical decision, and the differences between the groups are real rather than cosmetic.

A striking gap sits underneath all of this: 59% of adults aged 30 and over living with diabetes were not taking medication for it in 2022, with treatment coverage lowest in low- and middle-income countries. Diagnosis alone does not change outcomes. Treatment does.

What does this mean day to day here?

Two local factors are worth planning for: fasting and heat.

Ramadan. Fasting with diabetes needs a plan made in advance, particularly for anyone on insulin or a sulphonylurea, since those carry hypoglycaemia risk. The detail is in Ramadan and your medication.

Heat and hydration. Metformin may increase dehydration risk and its early signs are hard to recognise, and insulin can be damaged by heat without looking any different. If control is unexpectedly poor, heat-damaged insulin is one explanation worth considering. Both are covered in storing medicine in a Gulf summer.

Blood pressure. Diabetes and hypertension frequently travel together, and diabetes is one of the co-existing conditions that raises hypertension risk. Most people with type 2 diabetes will have their blood pressure monitored for exactly this reason. See high blood pressure in the UAE.

Do and don’t

Do:

  • Ask about a blood test if risk factors apply to you, before symptoms appear.
  • Attend screening for complications, including eye and foot checks.
  • Take the medicine you were prescribed, consistently.
  • Plan ahead for Ramadan if you take insulin or a sulphonylurea.
  • Keep insulin out of the heat, and replace it if control is unexpectedly poor.
  • Raise unexplained thirst, tiredness or blurred vision rather than adapting to them.

Don’t:

  • Don’t wait for symptoms to decide whether to be tested.
  • Don’t assume thirst in a hot country is always just the climate.
  • Don’t stop a diabetes medicine because your numbers improved on it.
  • Don’t treat type 2 as a condition only older adults get.
  • Don’t skip complication screening because you feel well.

Frequently asked questions

Can type 2 diabetes be prevented? WHO describes it as often preventable, and names a healthy diet, regular physical activity, maintaining a normal body weight and avoiding tobacco as ways to prevent or delay its onset. Genetics contributes, which is a reason for earlier screening rather than an argument that nothing can be done.

If I feel completely well, do I need treatment? Yes, if you have been diagnosed. Feeling well is the normal experience of early type 2 diabetes, which is the entire reason it goes undetected for years. The damage described above accumulates without symptoms.

How is it actually diagnosed? Through blood tests arranged by a healthcare provider, not from symptoms. Regular check-ups and blood tests are what WHO identifies as the best way to detect it early.

Where to go next

The diabetes management category lists what is stocked here, and type 2 diabetes mellitus approaches it from the diagnosis. The ingredients index maps each active ingredient to the brands containing it, which is the reliable way to match a medicine started in another country.

MedicForce option: our diabetes listings are organised by active ingredient and strength, so a prescription written elsewhere can be matched precisely.