Thyroid stimulating hormone is a hormone secreted by the human pituitary gland, and the ultrasensitive method, it is called ultrasensitive thyroid stimulating hormone. If it is high, the following situations are suggested: 1. The most common is subclinical hypothyroidism, which means that TSH thyroid stimulating hormone is slightly elevated, but T3 and T4 are normal, and there are no clinical symptoms of hypothyroidism, or only very mild symptoms of hypothyroidism, this category of people is called subclinical hypothyroidism, and hypersensitive thyroid stimulating hormone is high, most commonly in this category of people; 2. The human pituitary gland has become diseased, and also 2. Hypersensitivity thyroid hormone may be high in people with pituitary gland lesions; 3. Studies have found that many elderly people with normal longevity have slightly higher hypersensitivity thyroid hormone. It is recommended that in the above cases, you should go to the hospital when you receive the test results and ask your doctor to identify what is causing the elevated thyroid hormone. Depending on the individual case, thyroid hormone replacement therapy should be given or followed up.