Understanding Type 2 Diabetes in India: 24 Insights on Symptoms, Complications, Treatment, and Costs

Type 2 Diabetes has emerged as one of the most common chronic health conditions worldwide and a growing concern in India. It is characterised by the body's inability to use insulin effectively, which ultimately increases the blood sugar level. Beyond its effect on blood sugar levels, the condition is closely linked to a range of health, lifestyle, and healthcare outcomes that can influence long-term wellbeing. As lifestyles, dietary habits, and health risks continue to evolve, understanding Type 2 Diabetes has become increasingly important for individuals and families¹.

Based on Type 2 Diabetes related health insurance claim data for the calendar year 2025, from Go Digit General Insurance (Digit), this report brings together 24 research-backed insights on Type 2 Diabetes, covering symptoms, diagnosis, treatment, recovery, complications, and healthcare costs to provide a comprehensive view of the condition and its impact in India.

Type 2 Diabetes is often viewed as a condition that can be managed with medication and lifestyle changes, but its impact extends far beyond day-to-day blood sugar control. The condition influences how people live, work, recover from illness, and manage their long-term health².

The following insights bring together key observations and findings related to Type 2 Diabetes in India, offering a deeper perspective on the condition and its real-world implications. 

1. Type 2 Diabetes Cases Have More Than Doubled in the Last 5 Years

According to Digit’s data, the number of people requiring treatment for Type 2 Diabetes has steadily increased over the past 5 years, reflecting the growing burden of diabetes in India.

Factors such as sedentary lifestyles, unhealthy eating habits, rising obesity rates, stress, and an ageing population are contributing to the increasing number of diabetes-related health complications.

2. Around 90% - 95% of Overall Diabetes Cases are Type 2 Diabetes

There are three types of diabetes:

• Type 1 (autoimmune)
• Type 2 (insulin resistance)
• Gestational diabetes (occurring during pregnancy)

Out of these, Type 2 Diabetes is by far the most common form of diabetes, affecting millions of people worldwide. Around 9 out of every 10 people diagnosed with diabetes have Type 2 Diabetes, making it one of the most widespread lifestyle-related health conditions today in India³.

It develops when the body becomes resistant to insulin or does not produce enough insulin to keep blood sugar levels under control.

3. Adults Aged 51 - 65 Account for the Highest Share of Type 2 Diabetes Cases

Type 2 Diabetes is most seen in middle-aged and older adults because the risk increases with age, lifestyle factors, weight gain, and long-term metabolic changes⁴.

As per Digit, people aged  51 - 65 account for the largest share of Type 2 Diabetes cases, making regular health screenings especially important during these years.

4. Men Account for Nearly 59% of Type 2 Diabetes Cases Than Women

Type 2 Diabetes affects both men and women, but as per Digit, men account for about 59% of Type 2 Diabetes cases, compared to 41% among women.

Factors such as lifestyle habits, abdominal obesity, dietary patterns, and health-seeking behavior can influence how frequently the condition is diagnosed and treated.

5. Bengaluru, Hyderabad, and Kolkata Report the Highest Type 2 Diabetes Cases

Digit states that, “Cities like Bengaluru, Hyderabad, and Kolkata report the highest Type 2 Diabetes cases.”

This means people need to be extra cautious and watch out for factors such as sedentary lifestyles, work-related stress, and dietary habits.

Urban living can also increase exposure to risk factors like obesity, physical inactivity, and high blood pressure, highlighting the need for regular health screenings⁴.

6. Frequent Urination, Excessive Thirst, and Fatigue are Common Early Symptoms of Type 2 Diabetes

Type 2 Diabetes develops gradually, which means many people may not realise they have the condition until blood sugar levels become significantly elevated. Common early warning signs include excessive thirst, frequent urination, increased hunger, unexplained fatigue, blurred vision, slow-healing wounds, and recurring infections⁴.

Because the symptoms can appear slowly and seem harmless at first, many people who live with Type 2 Diabetes must undergo regular checkups if they are above 40 years of age.

7. HbA1c and Fasting Blood Sugar Tests are the Most Common Ways to Diagnose Type 2 Diabetes

Type 2 Diabetes is usually diagnosed through simple blood tests that measure blood sugar levels. One of the most important tests is the HbA1c test, which shows a person's average blood sugar levels over the previous 2–3 months and helps doctors identify both diabetes and prediabetes⁵.

Another commonly used test is the Fasting Plasma Glucose (FPG) test, which measures blood sugar levels after at least 8 hours without food. In some cases, doctors may also recommend a post-meal blood sugar test or an Oral Glucose Tolerance Test (OGTT) for a more detailed assessment⁵.

8. Diabetic Foot, Infections, and Heart Disease are Among the Most Common Diabetes-Related Complications

Type 2 Diabetes can affect multiple organs and systems in the body when blood sugar levels remain uncontrolled over time. Some complications are far more common than others, making regular health check-ups important for early detection and prevention⁴.

9. Lifestyle Changes are the First Line of Treatment for Most Type 2 Diabetes Patients

Type 2 Diabetes treatment usually begins with lifestyle changes such as eating a balanced diet, staying physically active, maintaining a healthy weight, and monitoring blood sugar levels regularly⁶.

Most people with Type 2 Diabetes can successfully manage their condition through a combination of healthy lifestyle habits, regular monitoring, and medications, helping reduce the risk of serious complications in the long term.

10. Type 2 Diabetes Can Be Managed with Tablets, Injectable Medicines, and Insulin

The treatment of Type 2 Diabetes is personalised to an individual's blood sugar levels, overall health, and how well their body responds to treatment⁶.

• Many people start with oral medicines such as metformin, which helps reduce sugar production in the liver and improves the body's ability to use insulin effectively.
• If blood sugar remains difficult to control, doctors may recommend injectable medications such as GLP-1 receptor agonists, which help lower blood sugar levels and can also support weight loss.
• In some cases, insulin therapy may be needed when the body is no longer able to produce enough insulin on its own.

11. Type 2 Diabetes Treatment Costs Average Around ₹20,000 Per Hospitalisation

Digit cost analysis suggests that the average cost of a Type 2 Diabetes hospitalisation is around ₹22K, which can vary depending on the severity of the condition, the need for specialised care, existing health conditions, and the length of hospital stay.

While many patients recover without major complications, hospitalisation can still result in significant medical expenses.

12. Severe Type 2 Diabetes Cases Requiring ICU Care Can Cost More Than ₹93 - ₹95K

According to Digit's data, ICU treatment costs average around ₹93,000 - ₹95,000 compared to non-ICU hospitalisations, making intensive care more than 5 times as expensive.

ICU admission may happen when patients may require intensive monitoring, advanced treatments, and round-the-clock medical care.

13. Senior Citizens Face Around 80% Higher Diabetes Treatment Costs Than Younger Adults

Based on Digit’s data, the average treatment cost for senior citizens is approximately 80% higher than younger adults. This is because older adults are more likely to have additional health conditions, require more medications, and need longer recovery periods, all of which can increase treatment expenses⁷.

14. Heart Disease, Infections, and DKA Can Significantly Increase Diabetes Treatment Costs

The cost of Type 2 Diabetes treatment can rise significantly when the condition is accompanied by serious complications or requires more intensive management. Factors such as heart disease, infections, diabetic ketoacidosis, and insulin dependence often increase the complexity of treatment, leading to higher medical expenses³.

Among the conditions analysed by Digit, Type 2 Diabetes combined with heart disease has the highest average treatment cost at nearly ₹1 lakh, while diabetic ketoacidosis, infections, and insulin-dependent diabetes can also substantially increase treatment expenses.

15. Type 2 Diabetes Treatment Costs Can Exceed ₹7 Lakh in Severe Cases

While many people with Type 2 Diabetes manage their condition successfully, serious complications such as severe infections, kidney damage, diabetic foot, or prolonged hospitalisation can lead to exceptionally high treatment expenses.

Based on Digit's analysis, the highest recorded treatment cost exceeded ₹7 lakh, showing how expensive diabetes care can become when complications are not detected and managed early.

16. Mumbai Reports Among the Highest Type 2 Diabetes Treatment Costs in India

Treatment cost data from Digit indicates, Mumbai followed by Indore, Ahmedabad and Meerut is among the states with the highest diabetes-related medical expenses reinforcing the importance of adequate health insurance coverage.

Higher treatment costs may reflect factors such as increased healthcare expenses, treatment in private hospitals, or the management of more complex diabetes-related complications. Understanding regional cost differences can help individuals plan for future healthcare needs⁷.

17. Type 2 Diabetes Treatment Costs are Around 13% Higher in Tier 1 Cities Compared to Tier 2 Cities

Healthcare costs often vary by location due to differences in hospital infrastructure, specialist availability, and overall cost of medical services. As a result, patients in larger cities may face higher treatment expenses⁷.

As per Digit, Type 2 Diabetes treatment in metro cities costs about 13% more than in non-metro cities, which can significantly impact out-of-pocket healthcare spending.

18. Most People Recover from a Type 2 Diabetes Hospitalisation in 2 - 3 Days

Type 2 Diabetes usually requires a relatively short hospital stay when blood sugar levels are brought under control quickly, and complications are managed in time.

Based on Digit’s data, early diagnosis, regular monitoring, and following the recommended treatment plan can often help patients recover in 2-3 days of hospitalisation and reduce the need for prolonged hospital care.

19. Around 1 in 4 Type 2 Diabetes Patients Need Hospital Care More Than Once a Year

Around 1 in 4 Type 2 Diabetes patients require hospitalisation more than once a year as per Digit, highlighting the importance of consistent diabetes management and regular follow-ups.

Type 2 Diabetes is a long-term condition that requires continuous monitoring and management. Uncontrolled blood sugar levels, recurring complications, infections, or other diabetes-related health issues may sometimes lead to multiple hospital visits within the same year⁸.

20. Nearly 22% of Diabetic Ketoacidosis Cases Require ICU Care

Patients with diabetic ketoacidosis need intensive monitoring to correct severe dehydration, restore electrolyte balance, and bring blood sugar levels back to a safe range. The risk of complications can be higher when treatment is delayed or symptoms are ignored⁸.

Nearly 22% of diabetic ketoacidosis cases require ICU admission, according to Digit, which highlights the importance of seeking urgent medical attention when warning signs appear.

21. Severe Type 2 Diabetes Cases May Require Around 5 – 6 Days of ICU Care

Digit data reveals that in severe cases, patients spend an average of 5-6 days at the ICU. While many people with Type 2 Diabetes can be managed without intensive care, severe complications such as extremely high blood sugar levels, diabetic emergencies, infections, or organ-related complications may require close monitoring in an ICU setting.

23. More Than 66% of Type 2 Diabetes Claims are Settled Through Reimbursement Process

Many people undergoing diabetes treatment continue to get treatment in a non-network hospital, where medical bills are paid upfront and reimbursed later by the insurer. This can create temporary financial pressure, especially during costly hospitalisations.

As per Digit, more than 66% of diabetes-related hospitalisations are settled through reimbursements, making it important to maintain emergency funds and understand your insurance claim process.

24. Maintaining a Healthy Weight and Staying Active Can Lower Type 2 Diabetes Risk

While factors such as age and family history cannot be changed, many of the key risk factors for Type 2 Diabetes are linked to everyday lifestyle choices. Taking preventive steps early can help reduce the likelihood of developing the condition and its long-term complications⁶.

Some of the most effective ways to lower your risk include:

• Maintaining a healthy weight
• Exercising regularly and staying physically active
• Choosing a balanced diet rich in fruits, vegetables, whole grains, and lean proteins
• Limiting sugary drinks and highly processed foods
• Getting adequate sleep each night
• Managing stress effectively
• Monitoring blood sugar levels if you have prediabetes
• Scheduling regular health check-ups, especially after the age of 40 or if you have a family history of diabetes

Type 2 Diabetes often runs in families, which means having a parent or siblings with the condition can increase your risk of developing it1. However, genetics is only one part of the picture. Lifestyle factors such as physical inactivity, unhealthy eating habits, excess weight, stress, and poor sleep can also play an important role.

Whether you already have Type 2 Diabetes, have a family history of the condition, or are simply concerned about your future health, taking proactive steps today can help you reduce complications, manage costs, and stay healthier in the long run.

Some practical ways to stay prepared for Type 2 Diabetes include:

• Know your family history and discuss it with your doctor during routine health check-ups.
• Get regular blood sugar tests, especially after the age of 40 or earlier if you have risk factors.
• Monitor key health parameters such as blood sugar, HbA1c, blood pressure, cholesterol levels, and body weight.
• Do not ignore symptoms such as frequent urination, excessive thirst, unexplained fatigue, blurred vision, or slow-healing wounds.
• Keep previous medical records and test reports organised, including HbA1c reports, blood sugar readings, prescriptions, and hospitalisation records.
• Understand your health insurance coverage, including waiting periods, sum insured, network hospitals, and cashless hospitals available under your policy.
• Maintain an emergency fund, as diabetes-related complications can sometimes result in unexpected medical expenses.

Type 2 Diabetes is a condition that requires ongoing attention, but it can often be managed successfully with the right care and lifestyle habits. The insights in this report show that while the disease can lead to serious health complications and higher medical costs, early diagnosis, regular monitoring, and timely treatment can make a significant difference⁶.

Although Type 2 Diabetes is a lifelong condition, it does not have to define a person's future. With the right knowledge, timely care, and healthy habits, many people can successfully manage the condition and continue to live active and fulfilling lives.