TSH norm in men by age

TSH, or thyroid-stimulating hormone, is a pituitary hormone that regulates the thyroid gland. The rate of metabolism and growth of the body, as well as the state of other systems, depends on the normal functioning of the gland. TSH is also known as thyrotropin and thyrotropin.

TSH function and its normal values

When the pituitary gland produces TSH and releases it into the bloodstream, thyroid hormones triiodothyronine (T3) and thyroxine (T3) are synthesized. The concentration of TSH in the body is regulated by thyroliberin and thyrostatin hormones, which are produced by the hypothalamus. If the level of T3 and T4 in the bloodstream is low, thyroliberin begins to be produced, which stimulates the production of TSH, and it already activates the synthesis of thyroid hormones.

With a high level of T3 and T4, the hypothalamus begins to produce thyrostatin, which inhibits the synthesis of TSH and hence the production of thyroid hormones. The TSH level can vary significantly during the day, the peak of its content is observed at 2-4 a.m., a high concentration persists until 6-8 a.m. Its lowest value falls on 17-18 hours. But if you stay awake at night, then the daily production of the hormone changes. The production of TSH decreases in the summer, so usually endocrinologists do not recommend donating blood for hormones at this time of the year, since the test results may not be informative. In addition, the TSH rate depends on the age of the man: its maximum concentration is observed during the period of intensive growth of the body:

• Newborn 1.1-39 IU / L
• Up to 1 month 1.7-9.1 IU / L
• From 1 to 2, 5 months 0 , 6-10 mU / l
• From 2.5 to 14 months 0.4-7 mU / l
• From 14 months to 5 years 0.4-6 mU / l
• From 5 to 15 years old 0.4-5 IU / L
• From 15 years old and adult men 0.4-4 IU / L
• Men are older 50 years old 0.5-8.9 mU / l

Depending on the physiological characteristics of the body, TSH norms may differ slightly, in most cases this does not indicate any pathologies. Also, these indicators may differ in different laboratories, since dissimilar equipment, reagents, methods can be used for the analysis.

Rule of preparation for passing the TTG

In order for the TSH test results to be reliable, you need to properly prepare for it.

• It is necessary to donate blood for TSH from 8 to 11 am on an empty stomach, the last meal is allowed at least 12 hours before the study (you can drink water)
• 72 hours before the analysis, you should refuse drinking alcohol, exclude overheating and hypothermia of the body, excessive physical and emotional stress, taking certain medications (iodine preparations, vitamins, acetylsalicylic acid, hormones, it is worth consulting with a specialist about refusing drugs)
• Before taking blood need to get enough sleep, as a sleepless night can significantly distort the test results
• 2 hours before donating blood, it is worth giving up cigarettes
• X-rays must not be taken 5 days before the test
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High TSH




A high level of thyrotropin is observed against the background of a low level of thyroid hormones T3 and T4. This deviation is called hypothyroidism. It may be accompanied by the following symptoms:




• asthenia, fatigue, excessive sleepiness
• dry and pale skin
• excessive hair loss, thinning
• bradycardia
• weight gain for no apparent reason
• hypotension
• good cold tolerance
• weakening potency
• sudden mood swings
• depression
• muscle weakness
• weakening of intestinal motility, which provokes constipation
• decreased concentration, weakened memory



A high level of TSH may not only indicate thyroid disease, but also damage to the pituitary gland. Various reasons can provoke hypothyroidism, most often it is caused by the following pathologies:




• tumor or inflammation of the thyroid gland
• tumor of the adrenal gland, pituitary gland
• violation of hormone production
• psychosomatic disorders, etc.

A high level of TSH can be observed if a person regularly plays sports, works in hazardous industries, recently underwent anesthesia or takes certain medications.





Decreased TSH concentration




With a low TSH level, the thyroid gland is overactive, resulting in high levels of T3 and T4 in the blood.This condition is called hyperthyroidism or thyrotoxicosis, which is accompanied by the following symptoms:




• sharp weight loss, despite increased appetite, this is due to accelerated metabolism
• tachycardia, arrhythmia
• excessive sweating during sleep
• increased peristalsis what causes diarrhea
• heat intolerance
• irritability and tantrums
• alopecia
• sleep disorder
• decrease sex drive and problems with potency
• decreased bone density



The following pathologies can provoke hyperthyroidism:




• goiter
• toxic adenoma of the thyroid gland
• euthyroid pathological syndrome
• pituitary disease
• diet, depletion of the body
• constant stress



If a man's TSH deviates from the norm, then this can provoke serious health problems. For example, hyperthyroidism can cause not only impotence, but also a decrease in testosterone concentration, and cause infertility. In addition, low TSH levels can lead to osteoporosis, which often leads to disability and disability. Therefore, if a man observes the above symptoms of hypothyroidism or hyperthyroidism, he should immediately consult a doctor. Timely and adequate therapy will help avoid serious complications and restore thyroid function. To eliminate the pathology and restore the work of the organ, you need to clearly follow all the doctor's recommendations, take the medications prescribed by him, adjust your diet and lifestyle, undergo regular examinations, donate blood for hormones and do an ultrasound of the thyroid gland.