Hypothyroidism

Share:

What is Hypothyroidism?

Hypothyroidism is the reduced production of thyroid hormones by the thyroid gland.

 

Causes and Risk Factors

Under the control of thyroid-stimulating hormone (TSH) from the pituitary, the thyroid gland produces thyroid hormones thyroxine (T4) and triiodothyronine (T3).  Thyroid hormones affect metabolism, heat production as well as growth and development.

Disorder of the thyroid, like all endocrine glands, can lead to the following:

  • Goitre – gland swelling
  • Hyperthyroidism– increased production of thyroid hormones
  • Hypothyroidism – reduced thyroid function

The most common cause of hypothyroidism is autoimmune diseases. It can also arise from thyroid removal or radioactive iodine (RAI) treatment of the thyroid. Secondary hypothyroidism can arise from pituitary disease. A blood test with low thyroid hormones and raised TSH confirms the diagnosis of primary hypothyroidism.

Symptoms

  • Weight gain
  • Cold intolerance
  • Tiredness
  • Poor mental function
  • Raised serum cholesterol

 

Treatment

Treatment for hypothyroidism is almost always life-long replacement with L-thyroxine. The dose is adjusted to achieve the dose that normalises the thyroid hormone and TSH levels.

Endocrinology

Doctor Profile

Amir S. Khir
Specialty
Endocrinology
Location
Gleneagles Hospital Penang

Our Specialists

Prof. Dr. Amir S. Khir
Specialty
Endocrinology
Location
Gleneagles Hospital Penang
Dr. Lim Shueh Lin
Specialty
Endocrinology
Internal Medicine
Location
Gleneagles Hospital Penang
EMERGENCY CONTACT
Gleneagles Hospital Kota Kinabalu
Ambulance / Emergency
+6088 518 911
Gleneagles Hospital Kuala Lumpur
Ambulance / Emergency
+603 4141 3018
Gleneagles Hospital Medini Johor
Ambulance / Emergency
+607 560 1111
Gleneagles Hospital Penang
Ambulance / Emergency
+604 222 9199