Diabetes: The Silent Killer Sweeping Across India

Using PharmEasy’s real-world diagnostic and medicine data to estimate the scale, distribution, and impact of diabetes across India.

By: Published On: Nov 10, 2025

Reviewed By: Dr Akash Shah (MBBS, MD, DM Endocrinology)

1 in 2
people tested show high blood sugar levels
in blood sugar cases after age 30
90%
with high sugar showed multi organ impact
DIABETES IN INDIA

What 4 Million+ PharmEasy Lab Tests Reveal

According to the ICMR INDIAB-17 study,1 more than 100 million people in India are estimated to have diabetes, and another 136 million are living with prediabetes. Globally, around 830 million people live with diabetes, according to the World Health Organization.2 Many people remain unaware of their risk, and India is far ahead of the global average when it comes to diabetes prevalence.

India’s Diabetes Prevalence

11.4% (ICMR INDIAB-17 study)

Global Diabetes Prevalence

10.1% (WHO)

The “Silent” Killer

Diabetes is often referred to as a "silent killer" because it can progress quietly, often without clear or early symptoms. It can strike anyone, regardless of age, gender, lifestyle choices, or geographic location.

Today, the only thing more concerning than having diabetes is not knowing you have it. A study shows that over 50% of people with diabetes in India are undiagnosed or unaware of their condition. This silent progression often delays diagnosis until complications like heart disease, kidney damage, or vision loss develop. Early detection through a simple blood test is still the best way to identify risks and take timely action.

PharmEasy’s Report Overview

This report brings together data-driven insights from PharmEasy Labs’ diagnostic results.

  • 1 in 2 people tested show high blood sugar levels.
  • The data shows a significant number of people with high blood sugar across all age groups. There is a sharp rise in the number of high blood glucose reports from 30 years of age.
  • 51.9% of men and 45.43% of women who tested had high blood sugar.
  • HOMA-IR results indicate that 58% of tested users have insulin resistance, an early marker of metabolic risk.
  • Among users who retested within six months, 22% showed improvement, returning to normal sugar levels. This highlights the crucial role of regular monitoring in managing diabetes effectively.
  • More than 90% of reports with high blood sugar also showed abnormality in one or the other parameters for liver, lipid, heart or thyroid issues. This highlights the need for regular testing, not just for blood sugar levels but also for overall body parameters.

These findings highlight the importance of preventive testing, regular monitoring, and timely intervention to help manage and halt the progression of prediabetes and diabetes.

DEMOGRAPHICS

Who’s Most at Risk? Revealing India’s Diabetes Patterns

To tackle diabetes effectively, it is essential to understand who is most at risk and how age, gender, demographic, and lifestyle factors contribute to the disease.

Age Distribution

Diabetes can impact people across all life stages, including childhood, the reproductive years, working age and older adulthood.

The theme for this year’s World Diabetes Day is “Diabetes Across Life Stages.” The campaign emphasizes the importance of adopting a life-course approach to diabetes prevention, management, and overall well-being.
– World Health Organization

PharmEasy Labs' data shows-

  • Alarmingly, people under 30 years also have high blood sugars.
  • Between the ages of 30 and 39, about 1 in 3 already shows elevated sugar.
  • Reports with hyperglycemia peaks after age 60, when 8 in 10 reports show high blood glucose.

This age-related pattern shows that the body's ability to regulate blood sugar decreases with age. This change is influenced by reduced insulin sensitivity and slower glucose metabolism. It also emphasises the need for adopting healthy lifestyle and regular testing early on, particularly for people who have sedentary lifestyles or a family history of diabetes.3,4

Variation in age-wise and prevalence data from fasting blood sugar and HbA1c

Comparing data on individuals with normal, high, and impaired blood glucose, based on fasting blood sugar (fig-4) and HbA1c (fig-5), shows that people aged 41 to 80 show a higher incidence of high blood sugar in HbA1c reports than in fasting blood sugar tests.

Age-wise distribution of HBa1c test results in India
fig-4
Age-wise distribution of FBS test results in India
fig-5

Similarly, data on the prevalence of diabetes shows a clear drop in the number of people with normal fasting blood sugar levels when compared with HbA1c reports.

Gender Differences in Diabetes and Insulin Resistance

Our data show that 51.9% of men and 45.43% of women (fig-6) who tested had high blood sugar.

Diabetes Prevalence by Gender
fig-6

Based on our HOMA-IR data, 58% of the reports show insulin resistance.

64% of males and 54% of females (fig-7) who got tested show insulin resistance, which is a key driver of type 2 diabetes.

Insulin Prevalence by Gender
fig-7

Men are biologically more likely to accumulate visceral fat, especially around the abdomen and liver. This buildup raises insulin resistance.5,8

On the other hand, women have partial protection before menopause as estrogen helps maintain better insulin sensitivity and blood sugar control. However, this advantage usually decreases after menopause, causing diabetes rates to rise in women over 50.6,7

In simple terms, lifestyle habits and body fat distribution make men more vulnerable at an earlier age, while women start to match that risk later in life if they don’t take preventive steps. However, larger studies do not demonstrate a significant gender difference in prevalence of diabetes in India.1 Which means both men and women should be equally aware of their risk of diabetes.

Early signs to watch for insulin resistance:

  • Acanthosis Nigricans: Dark velvety patches on the back of the neck, armpits, elbows, etc.
  • Skin Tags: On eyelids and other parts of the body.
  • Waist Circumference: An unwanted increase in waist circumference or the size of your clothes is a clear indicator of excessive visceral fat, which signals insulin resistance.

Keep an eye on these warning signs and act proactively to reduce your risk of diabetes.



Age-wise distribution of HBa1c test results in India
fig-4
age wise distribution of FBS test results in India
fig-5
Diabetes Prevalence by Gender
fig-6
Insulin Prevalence by Gender
fig-7

Early signs to watch for insulin resistance:

  • Acanthosis Nigricans: Dark velvety patches on the back of the neck, armpits, elbows, etc.
  • Skin Tags: On eyelids and other parts of the body.
  • Waist Circumference: An unwanted increase in waist circumference or the size of your clothes is a clear indicator of excessive visceral fat, which signals insulin resistance.

Keep an eye on these warning signs and act proactively to reduce your risk of diabetes.

"HbA1c test helps us understand a person's average blood sugar levels over the past 3 months, while fasting blood sugar gives us a picture of 1 day. Many patients maintain their diet and adhere well to their medicines on the day of testing; hence, fasting sugars are normal in reports, but HbA1c provides a clearer insight. For everyone with diabetes or prediabetes, multiple tests are recommended, including fasting blood sugar, post-meal blood sugar, and HbA1c, which are used together to diagnose and treat high blood sugar. Each test has its own importance; patients should keep a record of their ongoing medicines and blood sugar readings."

Dr. Arpit Verma (MBBS, MD, CCEBDM Diabetology)

GEOGRAPHIC ANALYSIS

Geographic Variation in Blood Sugar Control

Based on 4 Parameters: FBS, HbA1c, RBS, PPBS

As we analyzed data from lab test reports for fasting blood sugar, HbA1c, random blood sugar, and Post Prandial Blood Sugar (PPBS), we noticed variation in blood sugar control across regions.

State-wise Impact

Highest Prevalence

Puducherry

63% prevalence

Lowest Prevalence

HP

41% prevalence

Geogrphical Distribution - Hyperglycemic results (%)
(fig-8)
Puducherry
63%
Odisha
61%
Tamil Nadu
56%
Goa
54%
Himachal Pradesh (HP)
41%

Alert

The diabetes epidemic in India is evolving — with most states reporting an increase in prevalence, highlighting the urgent need to raise awareness about preventive measures and early screening.

The ICMR INDIAB study also shows that the rates of diabetes, hypertension, obesity, and dyslipidaemia are higher in urban areas. However, the rates in rural areas are much higher than previously reported.1

Urban areas report more cases, likely because of sedentary jobs, processed diets, and higher stress levels. Rural areas show fewer cases, but these might be underreported due to limited access to testing.9,10

In short, where you live and how you live play a critical role in determining diabetes risk.

Geogrphical Distribution - Hyperglycemic results (%)

(fig-8)

Note: Data may be influenced by sample distribution across different regions.


The ICMR INDIAB study also shows that the rates of diabetes, hypertension, obesity, and dyslipidaemia are higher in urban areas. However, the rates in rural areas are much higher than previously reported.1

Urban areas report more cases, likely because of sedentary jobs, processed diets, and higher stress levels. Rural areas show fewer cases, but these might be underreported due to limited access to testing.9,10

In short, where you live and how you live play a critical role in determining diabetes risk.

World vs India: Understanding Risk Factors

Research shows that young-onset diabetes is more than twice as common among Asian Indians compared to Europeans.11 This trend is linked to reduced beta-cell function, which means the pancreas produces less insulin, even with normal or low body weight. This “lean diabetes” phenotype is becoming an important aspect of diabetes in South Asia.11

Lean diabetes shows a predominance in men and demonstrates an increased risk of complications like diabetic eye disease, kidney disease, and nephropathy.12

Globally, the number of diabetes cases is expected to increase by about 73% by 2050. The biggest rises will likely happen in South and Southeast Asia. This worrying prediction underscores the importance of raising awareness, taking preventive measures, and encouraging early testing.13

"It’s a common misconception that Type 2 Diabetes just means high blood sugar. In reality, it reflects a deeper problem in the body’s sugar-regulating system, influenced by several genetic, metabolic, and lifestyle factors. Effective diabetes management requires a multi-model approach. This includes timely medical management, dietary & lifestyle changes, exercise, a good sleep routine, and psychological support."

Dr. Animesh Choudhary (MBBS, MD (Medicines))

SYMPTOMS & SCREENING

Spotting Diabetes Early: Symptoms and Screening

Early detection is crucial to preventing serious complications. By recognizing the warning signs of diabetes and getting tested early, you can take control and protect your long-term health.

Common Symptoms

Symptoms of diabetes include excessive thirst (polydipsia) and frequent urination(polyuria), often causing discomfort and disturbed sleep. Many people also experience extreme fatigue, unexplained weight loss, and blurred vision.

Common Symptoms of Diabetes
(fig-9)

Wounds or cuts may take longer to heal, and there can be tingling or numbness in the hands and feet due to nerve involvement. In some cases, excessive hunger (polyphagia) persists even after eating, as the body struggles to regulate blood sugar effectively.

Common Symptoms of Diabetes

(fig-9)

Are you at risk of Diabetes?

(fig-10)

Why It’s Often Missed

Diabetes and prediabetes usually develop slowly. Symptoms may be mild or even nonexistent.

This “silent” nature leads to a large number of undiagnosed cases. This, in turn, delays treatment and raises the risk of complications.

Are you at risk of Diabetes?
(fig-10)

Awareness of diabetes risk factors can empower individuals to adopt proactive measures for its prevention and early management.

Why Early Detection Matters

Early diagnosis allows for timely lifestyle changes and medication, which greatly lowers the risk of long-term damage due to serious complications. It’s important to note that prediabetes is reversible in many cases; prompt action can slow down or even halt the progression to type 2 diabetes.

Health Trajectories After Repeat Testing
(fig-11)

PharmEasy’s data of people who retested within six months emphasize that regular monitoring and lifestyle changes can slow progression and even restore a healthy glucose balance.

Health Trajectories After Repeat Testing

(fig-11)

MULTI-ORGAN IMPACT

The Hidden Burden of Diabetes: Multi-Organ Impact

Multi-Organ Impact of Diabetes

(fig-12)

Diabetes affects far more than just blood sugar. A dataset of more than a million reports with high blood sugar reveals how common it is for other organs and systems to be affected.

Apart from diabetes complications like kidney disease and heart disease, reports also show a close association with thyroid disorders and metabolic disorders like dislipidemia and fatty liver disease.

Below is a breakdown of the findings from PharmEasy’s data, along with explanations for why these problems occur.

Multi-Organ Impact of Diabetes
(fig-12)

1. Thyroid Dysfunction
  • According to our data, about 1 in 4 people with hyperglycemia also have a thyroid problem, most commonly an underactive thyroid (hypothyroidism).
  • Diabetes and thyroid issues are closely connected. Both involve hormonal imbalance, so when one is off, it can worsen the other.14,15
  • When your thyroid slows down, your metabolism drops. This can make you feel tired, sluggish, or cause you to gain weight easily.14,15
  • A slow thyroid can make it harder to control blood sugar, while high blood sugar can strain thyroid function.14,15

That's why regular thyroid screening is essential for people diagnosed with diabetes.

2. Liver Function Abnormalities
  • Our data shows that more than 1 in 3 people with high blood sugar also show signs of liver related problems in their blood tests.
  • This often happens because of fat buildup in the liver, which is called fatty liver disease. High blood sugar and insulin resistance cause the liver to store extra fat.16,17
  • Over time, this fat can lead to inflammation and scarring, which replace the healthy liver cells making it harder for the liver to function efficiently.16,17

Keeping sugar, weight, and cholesterol under control can help protect your liver.

3. Lipid Profile Derangements
  • Our data shows around 90% reports with high blood sugars also have abnormal cholesterol and fat levels(lipid profile derangements), known as dyslipidemia.
  • They often have a mix of high bad cholesterol (LDL), high triglycerides, and low good cholesterol (HDL).18
  • This combination significantly raises the risk of heart disease, stroke, and high BP.
  • Insulin resistance disrupts how the body uses and removes fats, leading to their buildup in the blood.

That's why lipid profile and heart health checks are crucial for everyone with diabetes.

4. Kidney Impairment
  • Nearly 1 in 2 reports from our data with hyperglycemia also show deranged kidney function parameters.
  • High blood sugar over time harms the tiny filters in the kidneys, making it harder to remove waste from the body while leaking useful proteins in urine.
  • As a result, regulation of serum creatinine, BUN, electrolytes, uric acid, and BP is affected, and urine tests can show protein discharge, indicating diabetic kidney disease.
  • If this is not managed, it can lead to chronic kidney disease and even kidney failure.

Regular kidney tests like KFT, urine micro-albumin test, and routine urine and blood sugar are key to unmasking kidney problems and getting early treatment.

5. Cardiac Risk Markers
  • About 1 in 3 reports from our dataset with hyperglycemia show signs of inflammation, which increases the risk of heart attack and stroke.
  • High blood sugar causes ongoing inflammation that slowly damages the lining of blood vessels.
  • Tests like cardiac risk markers, hs-CRP, and homocysteine help detect this hidden risk.

Keeping sugar, BP, and lipid profile in check helps protect your heart.

PREVENTION

Taking Control: Prevention and Management

Diabetes may be silent, but taking control doesn’t have to be complicated. The right combination of awareness, lifestyle changes, and timely medical care can prevent the disease from progressing or reduce the risk of complications. Early action can literally change the course of your health.

Healthy eating

Focus on a balanced diet in the right portions and proportions. Prefer whole grains, fresh vegetables, fruits, healthy fats, and high-fiber foods. Limit processed sugars and refined carbs.

Regular physical activity

Aim for at least 30 minutes of brisk walking, exercise, or movement each day. This improves insulin sensitivity and helps maintain a healthy weight.

Weight Management

Even modest can significantly reduce the risk of type 2 diabetes.

Routine screening

Regular blood sugar checks, especially for those over 30 with a family history or other risk factors, help catch issues early. One can use a glucometer to check blood sugar levels at home.

Sleep and stress management

7-8 hours of regular, uninterrupted sleep and reducing stress support proper insulin function and overall metabolic health.

Avoid harmful habits

Limit alcohol, quit smoking, and reduce sedentary behavior.

Diagnosed with Diabetes? Here’s how you can manage better:

Taking control of diabetes doesn’t require drastic changes; it involves consistent, informed actions that protect your health over time. Small, daily steps add up to significant benefits, making prevention and management easy.

  • Consistent monitoring: Keep track of fasting blood sugar (FBS), postprandial blood sugar (PPBS), and HbA1c as your doctor advises. Record all readings.
  • Medication adherence: Take your prescribed medicines on time. Never skip doses and follow up with your doctor regularly.
  • Balanced lifestyle: Eat healthy and exercise regularly to help your body better use insulin. Consult a certified nutritionist if needed.
  • Routine health checks: Regularly check on your kidney, liver, heart, thyroid, and eye health to prevent or detect complications early.
  • Stress and sleep: Both directly affect sugar levels, so make relaxation and a good sleep routine a priority.
  • Foot and dental care: Regular check-ups help prevent neuropathy, foot ulcers, dental problems, and other complications.
"Today, one of the most worrying trends in recent years is the changing age profile of diabetes. This significant shift means that complications such as heart disease, kidney issues, and vision loss are occurring decades earlier than before. Therefore, it’s important to understand that diabetes prevention should begin in childhood by nurturing healthy eating habits, encouraging regular physical activity, and promoting emotional well-being. These early habits go a long way towards reducing the risk of diabetes and related complications later in life."

Dr. Animesh Choudhary (MBBS MD)


CONCLUSION

Act Early. Stay Ahead.

Today, India stands at a crossroads: one path leads to a growing diabetes crisis, the other to prevention and control. Millions already face high blood sugar, often at younger ages.

Yet, early detection, regular monitoring, and doctor consultations can transform outcomes. Increased awareness and adherence to treatment lead to better control and fewer complications.

With routine testing, healthy habits, and informed choices, we can reduce the risk of diabetes. Every evening walk, balanced meal, and check-up strengthen our defense.

By acting now, we protect our future and the health of future generations. At PharmEasy, with the findings of this report, we encourage early screening and routine blood sugar monitoring in our fight against diabetes.