The thyroid is a small gland, but it plays a huge role in the human body. Problems with its functioning can lead to several symptoms that often go unnoticed. Understanding the signs and seeking an early diagnosis is essential to keeping the body functioning properly. This comprehensive article explores the main thyroid symptoms, explains how to identify nodules and disorders such as hyperthyroidism and hypothyroidism, and provides reliable information on diagnosis and treatment.
Summary
Explanatory video on thyroid warning symptoms:
What is the thyroid gland and what is its function?
THE thyroid gland is located in the front of the neck, below the Adam's apple. It is shaped like a butterfly and produces hormones fundamental for the metabolism, such as T3 (triiodothyronine) and T4 (thyroxine). These hormones regulate body energy, influence temperature, heart function, intestine and the development of the nervous system.
THE TSH (thyroid stimulating hormone), produced by the pituitary gland, controls the production of thyroid hormones. When something is out of balance, the body manifests symptoms which must be observed carefully.
What are the main symptoms of thyroid problems?
Thyroid problems can manifest with mild or severe symptoms. fatigue, weight changes inexplicable, hair loss, mood swings and palpitations are among the most common. The thyroid can affect sleep, skin, intestines and mood.

It is important to be aware of another symptom such as intolerance to heat or cold, as they may indicate hyperthyroidism or hypothyroidism. Symptoms such as persistent hoarseness or swelling in the neck also deserve evaluation.
Is your thyroid abnormal? Understand how to identify it
When the thyroid is altered, there is a change in production of thyroid hormones, resulting in hypothyroidism (low production) or hyperthyroidism (high production). Both can cause characteristic symptoms, but can also be confused with other conditions.
If you notice mood swings, excessive tiredness or weight changes for no apparent reason, it's time to investigate the thyroid function.
Hypothyroidism: symptoms and how it affects the body
THE hypothyroidism occurs when the thyroid does not produce hormones sufficient. This leads to a slow metabolism and symptoms like fatigue, cold intolerance, constipation and weight gain. It can also cause depression and difficulty concentrating.
One symptom important is the dry skin and the hair loss. The condition is more common in women and requires monitoring by an endocrinologist for hormonal adjustment.
👉 If you want to understand how the thyroid fits into the context of hormonal regulation, check out this guide to hormonal imbalances.
Hyperthyroidism: how to identify and treat
THE hyperthyroidism is the opposite: the gland produces excess hormones, accelerating the metabolism. Symptoms include weight loss, tremors, anxiety, sweating and palpitations. The Graves' disease is one of the main causes.

THE hyperthyroidism can cause menstrual irregularities and enlargement of the gland (goiter). The hyperthyroidism treatment may involve antithyroid medications, radioactive iodine or thyroid removal.
What is a thyroid nodule and what are the risks?
THE thyroid nodule is a formation located in the gland. Most of the time, the nodule is benign and does not cause symptoms, but it is important to investigate.
THE thyroid can to present functioning nodules, which produce excess hormones, causing hyperthyroidism. In some cases, it may indicate thyroid cancer. The diagnosis is made with blood test, thyroid ultrasound and thyroid scintigraphy.
Diagnosis: How to know if you have thyroid problems
Imaging tests, such as thyroid ultrasound and scintigraphy, help to verify thyroid nodules, the part of the thyroid affected and the presence of Graves' disease. An endocrinologist should evaluate the thyroid function and indicate the proper treatment.
Thyroid Nodule Treatment: What to Expect
THE thyroid nodule treatment depends on the type and size. In benign and small cases, only regular monitoring is necessary. If the nodule is functional or suspected malignancy, the use of iodine or surgery.

In cases where it is necessary to thyroid removal, the patient needs to start replacement with thyroid hormones to keep the good functioning of the body.
When to see an endocrinologist
THE diagnosis and treatment of the thyroid disorders begin with laboratory tests that assess levels of TSH, T3 and T4. If the levels are altered, it is possible to identify whether there is hypothyroidism or hyperthyroidism.
If you present symptoms of thyroid problems, as fatigue, weight changes, mood swings or swelling in the neck, look for a specialist. The endocrinologist is the doctor indicated for diagnose and regulate thyroid function.

THE hormonal assessment is fundamental for a proper treatment, both of hypothyroidism and hyperthyroidism. Regular monitoring is essential to ensure the hormonal control and avoid complications.
Summary: What to Remember About Thyroid Symptoms
- THE thyroid is a gland that regulates the metabolism and the production of hormones.
- Symptoms as fatigue, weight changes and mood swings must be investigated.
- Hypothyroidism and hyperthyroidism are the thyroid disorders most common.
- Thyroid nodules are usually benign but require monitoring.
- THE diagnosis is made by hormonal and imaging tests.
- THE treatment varies by case and may include medications, iodine or surgery.
- Consult a endocrinologist whenever you suspect thyroid problems.
Take care of thyroid health is essential to maintain the good functioning of the body and hormonal balance.