With the popularity of medical checkups, many people have been diagnosed with thyroid disease. Thyroid diseases are ubiquitous in our daily lives, and they are like enemies hidden in the shadows. Some of these diseases cause hypothyroidism, while others cause hyperthyroidism, which is often referred to as hypothyroidism and hyperthyroidism. In addition, there are more serious conditions such as thyroid nodules and thyroid cancer. Thyroid nodules, for example, have a staggering prevalence. In our country, the incidence of thyroid nodules is about 2043 per cent, or almost 1 in 5 people affected. Such data makes thyroid disease an existence that we cannot ignore, and it also makes more and more people begin to pay attention to this field. 
1. Classification of thyroid diseases
In the field of thyroid diseases, benign nodules such as thyroiditis, hyperthyroidism, hypothyroidism, nodular goiter and thyroid tumors, and malignant tumors such as thyroid cancer.
In the early days, whether it is benign or malignant, it is like a silent watchman, obscure and inconspicuous. But as the disease progresses, they begin to show signs of malice: hoarseness, lumps in the neck, incessant coughing, coughing up blood, difficulty swallowing or obstruction, and even compression. Some patients with inflammatory thyroid disease may also experience pain in the thyroid area of the neck.
Hyperthyroidism, hypothyroidism and thyroid cancer are linked to heredity like the stars in the night sky, hidden but twinkling. Especially if you have a family history of thyroid cancer, you are a group that needs more care. The formation of thyroid cancer is also inextricably linked to radiation. Those who have been exposed to large amounts of radiation, such as those who received radiation therapy for head and neck tumors as teenagers, need to be vigilant at all times.
2. Hyperthyroidism and hypothyroidism
Hyperthyroidism, like an accelerator of life, makes the metabolism speed up like a storm, causing the heart rate to beat like a war drum, sweat like a trickle, the body to tremble in the heat, the hunger is increasing day by day, and the body is getting thinner and thinner. The temper is hot-tempered, like a raging storm, which is difficult to quell. In severe cases, hyperthyroidism creeps in, and heart changes like strings trembling. Hypothyroidism, just like the slow motion of life, makes the metabolism become like a snail walking, and the weight seems to weigh a thousand pounds. Afraid of cold like a biting cold wind, heart rate like the breathing of an old man, constipation like a stone, loss of appetite. Drowsiness hits, and I have no intention of fighting. Over time, people will become bloated, the burden on the heart will be like a mountain, the heart muscle will be hypertrophied, and the function will decline. If the two are not **, the consequences are worrying. If hyperthyroidism is not treated, people will be like dead branches and leaves, becoming thinner and thinner, and their organs will be damaged. If hypothyroidism is not treated, people will be swollen like steamed buns, and their hearts will become heavier and heavier. Both can erode heart function and make people miserable in the midst of illness. 
3. Signals of thyroid cancer
(1) Voice change
If you are unlucky enough to settle near the recurrent laryngeal nerve, the nerve will be eroded by cancer cells. It's like a ** family's throat is stuck, and the originally smooth notes become hoarse or even out of tune.
(2) Difficulty swallowing or breathing
If the tumor grows in the body and becomes bulky, compressing the delicate structures in the neck, the patient may suffer from breathing difficulties and swallowing discomfort. It's like a heavy stone pressed against a slender neck, making it extremely difficult to breathe and eat.
(3) Neck mass
This symptom is usually discovered incidentally during the patient's physical examination, and this lump is usually not felt. If you have been exposed to intense radiation in your neck, be alert to the risk of cancer to prevent it from occurring.
(4) Swollen lymph nodes
As thyroid cancer grows, it spreads on the side of the neck, causing the lymph nodes to swell. In addition, for those who are at high risk of having been exposed to head and neck radiation or exposure to radioactive materials during childhood, as well as those with a family history of thyroid disease, we strongly recommend that they have an annual color ultrasound to ensure thyroid health. Take care of your thyroid gland