Thyroid Disorders: Symptoms, Diagnosis and Treatment The thyroid is a small, butterfly-shaped gland located at the front of the neck. It produces hormones that help regulate metabolism, energy levels, body temperature, heart rate and several other important functions. Thyroid Disorders occur when the gland produces too much or too little thyroid hormone, or when structural changes such as thyroid nodules develop. Early diagnosis and appropriate medical care can help manage many thyroid conditions effectively. What Are the Common Symptoms of Thyroid Problems? Thyroid symptoms vary depending on the type of disorder. Common symptoms include: - Unexplained changes in weight - Tiredness, weakness or low energy - Increased sensitivity to heat or cold - Hair thinning or hair loss - Dry skin - Changes in heart rate - Mood changes or difficulty concentrating - Irregular menstrual periods - Swelling or a lump in the neck - Changes in bowel habits These symptoms can occur for many reasons and do not necessarily indicate thyroid disease. A medical evaluation can help identify the cause.