Few organs have a greater influence on daily life while receiving so little attention. The thyroid gland, a small butterfly-shaped structure at the base of the neck, helps regulate energy, metabolism, mood, sleep, heart function and reproductive health. However, when it falls out of balance, life often feels different long before people understand why.
Fatigue that lingers despite adequate rest, unexplained weight changes, difficulty concentrating, anxiety without a clear trigger, hair thinning, and poor sleep are symptoms many people encounter at different stages of life. They are often attributed to stress, ageing, demanding schedules, or hormonal transitions. Yet, for so many people, they may point to something else entirely.
India carries one of the world’s largest thyroid disease burdens. Estimates suggest that nearly 4.2 crore Indians may be living with thyroid disorders. Despite this, awareness remains surprisingly limited. Many people spend years seeking answers before receiving a diagnosis, while others simply learn to live with symptoms they believe are a normal part of modern life.
Part of the challenge lies in the nature of thyroid disease itself. The symptoms rarely arrive dramatically. Instead, they emerge gradually, blending into the background of everyday living. Hence, in a culture where exhaustion is often worn as a badge of productivity, warning signs can easily be overlooked.
For years, thyroid disease was largely viewed as a women’s health issue. Women continue to be disproportionately affected, particularly during pregnancy, after childbirth and during the transition to menopause. Yet, the profile of thyroid disease is changing. Across Apollo Hospitals endocrinologists are observing a broader pattern. Young professionals struggling with persistent fatigue, individuals navigating unexplained metabolic changes and an increasing number of men are being diagnosed with thyroid disorders that had remained unrecognised for years.
This shift matters because assumptions can delay diagnosis. Men may be less likely to consider thyroid dysfunction when faced with symptoms such as weight gain, low energy, mood changes, or declining concentration. Women, meanwhile, often find thyroid symptoms dismissed as stress, burnout, or simply part of a busy life. During menopause, the challenge becomes even greater, as symptoms such as fatigue, sleep disturbances, mood fluctuations, and weight gain closely mirror those associated with thyroid dysfunction.
According to endocrinologists at Apollo, one of the most common causes of hypothyroidism is Hashimoto’s disease, an autoimmune condition in which the body’s immune system gradually attacks the thyroid gland. The condition often develops slowly and its symptoms can be subtle or easily mistaken for other health concerns, which may delay diagnosis. Nevertheless, when thyroid disorders remain undiagnosed or untreated, their effects can extend beyond the thyroid gland itself. Since thyroid hormones help regulate many essential bodily functions, imbalances can affect energy levels, metabolism, heart health, mood, cognitive function and overall wellbeing.
There is growing reason for optimism in the field of thyroid health. Researchers around the world are investigating how genetic, environmental and lifestyle factors may influence the onset and progression of autoimmune thyroid disorders. While hormone replacement remains the cornerstone of treatment, increasing scientific interest in the underlying drivers of the disease is helping to deepen our understanding of thyroid health. As knowledge continues to evolve, earlier recognition and timely treatment will certainly improve outcomes for many patients.
At large, health care is often associated with responding to illness. Yet, increasingly, it is also about recognising patterns early and preventing unnecessary suffering. The upsurge in thyroid disease is, in many ways, a reminder that some of the most significant threats to wellbeing are not always dramatic or visible. Often, they unfold quietly, becoming part of everyday life until someone pauses to ask whether feeling this way is truly normal. For so many Indians, that question may be the beginning of a diagnosis, a treatment plan and, ultimately, a better quality of life.
Dr Preetha Reddy is Executive Vice Chairperson of Apollo Hospitals Enterprise Limited.
