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Hormone tests: testosterone, FSH and thyroid hormones

, medical expert
Last reviewed: 04.07.2025
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If a woman's body lacks any hormones or, on the contrary, has too many of them, she may suffer from excess weight. Read more about such important hormones as testosterone, FSH and thyroid hormones, on which a woman's optimal weight and well-being depend.

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The hormone testosterone and its role in the female body

Have you had your testosterone levels tested lately? Do you know how much there should be so that you don't gain weight at the speed of sound? If your body has 40-60 ng/dl of testosterone, that's normal. It means that your hormonal processes involving testosterone are going well.

Details about testosterone

If the testosterone level in the body is lower than 30 ng/dl, it's all over: these are sexual desire disorders, that is, its weakening, this is weakness, rapid fatigue. And in addition, low testosterone levels are guaranteed to cause weight fluctuations and poor bone tissue development, bone fragility.

Human activity decreases sharply when testosterone levels drop below 30 ng/dl. This is proven by scientific studies.

Therefore, contact your doctor in time for hormonal testing and prescription of hormonal therapy if necessary. Moreover, this analysis may reveal an incomplete picture if only your saliva and urine are examined. Blood tests for hormones are also needed.

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FSH, or follicle-stimulating hormone

It is so named because it stimulates the development and work of the main female organ - the ovaries. Each time before ovulation, it is FSH that prepares the ovaries for the growth of new follicles.

As soon as the ovaries become weak, especially after surgery or with age, and cannot produce enough of the female hormone estrogen, this can be determined by a hormonal analysis by a sharp increase in FSH in the blood.

The ABCs of hormones: high doses of FSH always mean low production of estradiol. Then it needs to be increased urgently. And the level of FSH is a signal from the brain. It is in one of its areas – the pituitary gland – that this hormone is produced to stimulate the ovaries.

If your estradiol level is low, your doctor will definitely prescribe hormone replacement therapy. If, of course, you contact him in time.

To see the full picture of the correctness and sufficient level of hormone production, you need to pay attention not only to the brain's FSH level, but also to the production of hormones by the ovaries. These are testosterone, estradiol and progesterone.

Then you can choose the right treatment, since the overall picture of the hormonal background will be clear.

Thyroid hormones

These are very indicative and important hormones in a woman's body. If the thyroid gland does not produce enough hormones, a person may have significant weight fluctuations. Do not be surprised then if you suddenly, seemingly without reason, gain and lose weight.

To determine if your thyroid hormone levels are sufficient, you need to have the following hormones tested (their levels):

  • Thyroid stimulating hormone
  • T3
  • T4
  • Thyroid antibodies (antimicrosomal antibodies, antithyroglobulin)

The level of these hormones in the blood will give you an accurate idea of what therapy to prescribe for you. Which hormones produced by the thyroid gland are in excess in the body, and which are in short supply.

Your weight control will depend on this. Therefore, get examined by an endocrinologist in time and be healthy!

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