

Leading Thyroid Doctor in Chennai for Comprehensive Treatment
Dr. K.S. Thalavai Sundaram is a reputed and trusted thyroid specialist in Chennai, with a focused clinical practice in endocrine surgery. Holding MBBS, MS, and MCh degrees in endocrine surgery, his practice centres on advanced endocrine procedures with expertise in thyroid, parathyroid, adrenal, and cosmetic thyroid surgeries. Expert in scarless, minimally invasive techniques that prioritise better recovery, outcomes, and patient comfort.
read moreSpecialized Care for All Thyroid Disorders
Comprehensive diagnosis and treatment for every thyroid condition.
Hypothyroidism
Hypothyroidism is a health condition characterised by insufficient production of thyroid hormones by the thyroid gland, resulting in a significant slowdown of bodily functions. Since the thyroid is crucial for regulating metabolism, its underactivity can profoundly affect energy levels, body temperature, and overall health.
Hypothyroidism Treatment
Hyperthyroidism
Hyperthyroidism is a serious condition characterised by excessive production of thyroid hormones from the thyroid gland, resulting in an overactive metabolism. This can lead to significant weight loss, heightened heart rate, and heightened anxiety. Without proper treatment, hyperthyroidism poses severe risks that can affect the heart, bones, and overall well-being.
Hyperthyroidism Treatment
Thyroid Swelling
Thyroid swelling, commonly known as a goiter, refers to the abnormal enlargement of the thyroid gland. This condition can arise from a variety of thyroid disorders, and it may present itself as a minor, harmless lump or develop into a significantly enlarged gland that causes discomfort, swallowing difficulties, or breathing issues.
Thyroid Swelling Treatment
Thyroid cancers
Thyroid cancer arises when abnormal cells proliferate uncontrollably in the thyroid gland, resulting in a tumor. Though many forms of thyroid cancer grow slowly and are manageable, early detection is vital for achieving optimal outcomes. Understanding the different types of thyroid cancer, along with their severity and progression, can empower individuals to seek timely medical attention.
Thyroid Cancer Treatment
Hyperparathyroidism
Hyperparathyroidism is a significant medical condition characterised by the parathyroid glands producing excessive parathyroid hormone (PTH). This imbalance disrupts calcium levels in the body, potentially leading to serious complications such as bone weakness, kidney stones, and various health issues. This condition can be classified as primary, secondary, or tertiary, each with distinct causes and implications.
Hyperparathyroidism Treatment
Hypoparathyroidism
Hypoparathyroidism is a rare yet significant condition characterised by the inadequate production of parathyroid hormone (PTH) by the parathyroid glands. This deficiency results in low calcium levels (hypocalcemia) and elevated phosphate levels in the blood, leading to potential issues with nerve, muscle, and bone health. It may arise from various factors, including genetic predispositions, surgical interventions, or autoimmune disorders.
Hypoparathyroidism Treatment
Parathyroid Tumors
Parathyroid tumors are abnormal growths in the parathyroid glands, critical regulators of calcium in your body. While most are benign adenomas, some atypical cases may develop into malignant tumors. These growths can cause an overproduction of parathyroid hormone (PTH), leading to hypercalcemia (high calcium levels) and a cascade of health issues.
Parathyroid Tumors TreatmentScarless, Painless Thyroid Surgery by Chennai’s Renowned Expert

Endoscopic and robotic thyroidectomy is a precise, minimally invasive alternative to conventional open surgery. By avoiding visible neck incisions, these techniques ensure desirable cosmetic outcomes while also minimizing postoperative discomfort, complications, and recovery time. Performed by a thyroid specialist with focus on clinical condition and individual patient’s profile.
What Makes Us the Top Choice for Thyroid Surgery in Chennai
- Robotic and endoscopic thyroidectomy for scar-free outcomes.
- Minimally invasive methods that prioritize safety, comfort, and precision.
- Swift post-surgical recovery with minimal impact on routine.
- Comprehensive evaluation and personalized surgical planning.
- Chennai’s renowned surgeon with a proven track record in thyroid care.
- Equipped with state-of-the-art infrastructure for advanced thyroid care
Testimonial
What Our Patients SayReal stories of recovery from patients who trusted us for thyroid treatment.

I recently visited the doctor for my mother, who has been on thyroid medication for a while. She was experiencing symptoms like extreme tiredness, constant sleepiness, and lack of energy. We were quite concerned, so I decided to consult this endocrinologist. After the consultation, we discovered that her thyroid levels were well-maintained, but the doctor also identified that she might need additional support. Along with her regular thyroid medicine, he prescribed a supplement. Amazingly, within just 3 days of starting it, my mother felt a noticeable difference — she became more active, energetic, and healthy.
Joe Lorinda
Dr.Thalavai Sundaram’s approach is not only highly professional but also deeply compassionate. He took the time to explain my condition clearly, answered every question with patience, and made me feel completely at ease throughout the process. The care I received was top-notch from consultation to recovery. Highly recommend him to anyone looking for a skilled and trustworthy specialist.
Purabhi Ravikumar
Meet Raj. Dr. K.S. Thalavai Sundaram is a miracle worker for Primary Hyperparathyroidism. His precise treatment at Apollo Hospitals in Chennai brought relief. Highly recommend his expertise!
Raj Primary Hyperparathyroidism
I'm Mark, and Dr. K.S. Thalavai Sundaram is a Men's Health maestro! His expertise at Apollo Hospitals, Chennai, transformed my health. Grateful for his knowledge, friendly approach, and effective treatment.
Sonam Men's HealthFAQ’S
frequently asked questionMost patients resume normal activities within a week, with complete recovery in a few weeks.
It depends on the extent of the surgery. If the entire thyroid is removed, lifelong hormone replacement is usually needed.
Persistent neck swelling, difficulty swallowing, hoarseness, or abnormal thyroid function tests require evaluation by a specialist.
Discomfort is minimal and well-managed with medication. Advanced techniques ensure a smoother, less painful experience.