What is abnormal thyroid function? People with hypothyroidism consume energy slowly and have a slower metabolic rate. Conversely, if the thyroid gland is working at a high level, it releases too much thyroid hormone into the bloodstream, causing “hyperthyroidism”, which speeds up the body’s metabolic processes. Patients with abnormal thyroid function do not have all the symptoms associated with the disease, and not all patients will have all the symptoms associated with the disease. Hypothyroidism The signs and symptoms of hypothyroidism (hypothyroidism) are similar to those of some other common diseases, so hypothyroidism is often underdiagnosed. The following physical changes should be noted: fatigue, sleepiness and/or weakness, fear of cold (not being able to tolerate cold like others around you), memory loss, weight gain or difficulty losing weight (even with controlled diet and exercise), depression, constipation, menstrual disorders and/or infertility, joint or muscle pain, thinning and brittle hair or nails and/or dry, flaky skin. One should be aware of the signs and symptoms of hypothyroidism. This is because even patients with few or mild symptoms (known medically as “subclinical hypothyroidism”) can become more seriously ill if left untreated. Hyperthyroidism Hyperthyroidism (hyperthyroidism) is less common than hypothyroidism, and symptoms that should be noted include: eating and drinking as usual but losing weight, nervousness, anxiety, irritability, anger, rapid heart rate (often more than 100 beats per minute), protruding eyes, staring, hand tremors, muscle weakness, fatigue, hair loss, increased bowel movements, faster nail growth than before, thin, slippery skin, fear of heat, sweating, and menstrual disorders. sweating, menstrual disorders. Symptoms of abnormal thyroid function can make patients feel uncomfortable and can affect their mood, work and family life. But more importantly, untreated abnormal thyroid function can cause serious, even life-threatening complications for patients. Untreated hypothyroidism can lead to a slow heart rate and even cause patients to pass out. Moreover, it is associated with increased blood pressure and higher blood cholesterol levels (both risk factors for heart disease), as well as infertility and Alzheimer’s disease (an increased risk for women). In addition, hyperthyroidism is associated with an increased risk of osteoporosis (loss of bone mass and increased likelihood of fracture), especially in postmenopausal women.