World Liver Day: Experts warn liver disease is the ‘fourth major complication’ of diabetes

For decades, patients living with Type 2 Diabetes (T2D) have been warned to watch their hearts, kidneys and eyes. However, a new and dangerous "silent" threat has emerged as the next major frontier in diabetic care.

Medical experts across India are now sounding the alarm on liver disease, labelling it the "fourth major complication" of diabetes, a condition that often progresses to irreversible damage before a single symptom appears.

The silent progression: From fat accumulation to cirrhosis

The primary danger of liver involvement in diabetes is its stealthy nature. Unlike other ailments that present with pain or visible distress, liver damage often hides behind a mask of wellness.

Dr. Vinay Kumar B R, Consultant Hepatologist at Fortis Hospital (Bengaluru) said that conditions like Non-Alcoholic Fatty Liver Disease (NAFLD)—now increasingly referred to as Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)—can progress without any obvious symptoms.

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"By the time symptoms like fatigue, abdominal discomfort, or abnormal liver function tests become apparent, the disease may have already advanced to serious stages such as steatohepatitis, fibrosis, or even cirrhosis," Dr. Kumar warned.

This sentiment is echoed by Dr. Pradeep Krishna, HPB & Liver Transplant specialist at Apollo Hospitals (Bangalore) who said that diabetes and obesity are rapidly overtaking viral hepatitis as the leading causes of liver disease"Insulin resistance leads to fat deposition, inflammation, and injury, progressing to fibrosis if unchecked," he said, stressing that diabetes and obesity now surpass viral hepatitis as top liver disease causes. Early screening in high-risk groups is vital, as lifestyle tweaks and metabolic control can alter the trajectory.

The science of damage: Insulin resistance and oxidative stress

At the cellular level, the link between high blood sugar and liver decay is direct. Dr. Soma Srinivas, Consultant Endocrinologist at Gleneagles Hospital (Fortis network), said that chronic hyperglycemia (high blood sugar) induces oxidative stress. This process overwhelms the liver's natural defences, leading to cell death and inflammation.

Dr. Srinivas pointed to a startling multicentre Indian study of over 9,000 T2D patients, revealing that one in four already had clinically significant fibrosis, and one in twenty met the thresholds for probable cirrhosis—all while being entirely asymptomatic.

"Insulin resistance causes the body to break down fat in peripheral tissues while sending excess fat to the liver," explained Dr. Vinay Kumar. This creates a cycle where the liver becomes a storage unit for fat, leading to chronic low-grade inflammation.

Data signals a broader crisis

India grapples with a NAFLD "silent epidemic" affecting 9-32% of the population, contributing to over 66% of deaths and soaring costs. Manish Dodeja, Chief Operating Officer, Care Health Insurance, said, “Liver diseases are no longer confined to a narrow risk pool but are expanding in ways that are increasingly concerning. We have observed a clear shift in both profile and intensity. Cases are rising sharply, younger population is getting impacted, and the financial impact on households is becoming significantly heavier.

He further said that this is not just a clinical issue; it is increasingly an economic one as well. It is therefore critical for individuals to periodically review their health coverage and ensure their sum insured keeps pace with these evolving risks, because unless awareness, early detection, and financial preparedness move in tandem, the gap between risk and readiness will continue to widen.”

The fertility connection: A new concern for men and women

Perhaps most surprising is the link between liver health and reproductive success. For women, especially those with PCOS, fatty liver can wreak havoc on hormones. Dr. Hrishikesh Pai, Consultant Gynecologist & IVF Specialist at Lilavati Hospital (Mumbai) and Fortis Hospitals (Delhi) said: “In women, fatty liver is closely linked with hormonal imbalance. We are seeing more patients with Polycystic Ovary Syndrome and irregular periods where fatty liver is also present. This affects ovulation and makes it difficult to conceive.”

Doctors say fatty liver affects how the body handles insulin and hormones, which are very important for regular periods and pregnancy. Experts also point out that PCOS and fatty liver together are becoming a common problem, especially due to sedentary lifestyles and poor eating habits.

Men are not exempt. Dr. Vineet Malhotra, Head of Urology at VNA Hospital, points out that liver health directly influences testosterone levels. "Fatty liver, along with obesity, is leading to low sperm count and poor sperm quality," he says, noting a sharp drop in male fertility across India.

The "silent epidemic" is no longer confined to older populations. Dr. Saurabh Singhal, Director at the Centre for Liver-GI Diseases and Transplantation said that he is seeing a sharp rise in fatty liver cases among people in their 20s and 30s due to sedentary lifestyles.

“We are seeing a big increase in fatty liver cases, even in younger people in their late 20s and 30s. Earlier it was mostly seen in older patients, but now due to poor lifestyle and diet habits, it is becoming very common in the young population also in India.”

Dr. Amit Miglani, Director & HOD of Gastroenterology at Asian Hospital (Faridabad) said "Almost every second patient we see has some degree of fatty liver. Many people do not even know they have it because it shows very few symptoms in the early stage. That is why it is called a silent disease.”

The roadmap to recovery: Integration and screening

The consensus among experts is that liver health must be integrated into routine diabetes management. Dr. Pavan Hanchanale, Consultant Hepatology and Liver Transplant at Jupiter Hospital (Pune) urged proactive checks: "Liver disease, a lifestyle epidemic, hits fertility and beyond if caught late; at-risk groups—obese, diabetic or with family history—need yearly hepatologist evaluations alongside routine tests."

Dr. Nishchitha K, Consultant Endocrinology at Gleneagles BGS Hospitals, Kengeri (Bengaluru) said that fatty liver now outpaces viral hepatitis in diabetes patients, often undiagnosed until late. "High sugar and insulin resistance cause silent inflammation and scarring; integrate fibrosis scans and imaging into diabetes care for high-risk cases like obesity," she advises. The good news: early modest weight loss, exercise and glycemic control can reverse it, shifting focus to holistic metabolic health.

Dr Pavan Hanchanale, Consultant - Hepatoloy and Liver Transplant Physician, Jupiter Hospital (Pune) said, “Liver disease is becoming a common lifestyle problem in India. The worrying part is that people realise it very late. By that time, it may already be affecting other systems in the body, including fertility. Like we all do regular preventative health checks every year, everyone should also have liver health evaluation with Hepatologist once year, especially at-risk people like obesity, diabetes, altered liver parameters in blood test, fatty liver, hepatitis or cirrhosis in family members.”

Experts unite on prevention: screen routinely, prioritise weight management, glycemic control, and activity. While the "fourth complication" is dangerous, it is also largely reversible in its early stages through weight management, glycemic control, and physical activity. The message is clear: don't wait for symptoms to act.