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Doctor insights on: Testosterone Deficiency

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How is testosterone deficiency diagnosed?

How is testosterone deficiency diagnosed?

History and Labs: History indicates this may be present. Any male suffering fatigue and having erectile dysfunction should have testosterone levels. I like to use both total testosterone and free testosterone levels to verify deficiency. I also get a psa (prostate cancer blood test) to make sure prostate cancer is not present prior to starting testosterone replacement in someone proven to need it. ...Read more

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Dr. Alvin Lin
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Testosterone (Definition)

Testosterone is a hormone/androgen which is a kind of ...Read more


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Managing Low Testosterone (Checklist)

Have your testosterone checked each morning
Once
Discuss the risks and benefits of testosterone replacements with your doctor
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Take a testosterone replacement as instructed
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Dr. Alvin Lin Dr. Lin
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How does testosterone deficiency affect sex?

Dr. Alvin Lin Dr. Lin
8 doctors agreed:
How does testosterone deficiency affect sex?

Depends . . .: I feel a bit like former president bill clinton answering your question. If by "sex" you mean male vs female, then there's really no link between testosterone and determination of fetal gender (caveat: low Dht can cause xy male to look female). But if by "sex" you mean sexual function in a broad sense, then low t levels could decrease sex drive in both men & women as well erectile function in men. ...Read more

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What is hypogonadism (testosterone deficiency syndrome)?

Low gondal hormones: Hypogonadism in men is low function of the gonads, the testes, resulting in low testosterone or low sperm production. This often is from weak pituitary stimulation, but also can be a primary testicular dysfunction. This is a problem that can be diagnosed. In most men, effective treatments are available. ...Read more

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If I didn't have facial hair til18years old and I was very skinny. at age 35 for the first time I checked testosterone is 150. deficiency since birth?

If I didn't have facial hair til18years old and I was very skinny. at age 35 for the first time I checked testosterone is 150. deficiency since birth?

Low T since birth: There are certain genetic disorders that cause deficiency in testosterone. If you went through puberty, then you had enough testosterone. If you are obese, then low testosterone is likely from your fat cells converting testosterone to estrogen (female hormone). Exercise, eat less, lose weight, and a lot more improvement in your overall health will occur. ...Read more

Dr. Alvin Lin Dr. Lin
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Does growth hormone deficiency lower testosterone levels?

Dr. Alvin Lin Dr. Lin
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Does growth hormone deficiency lower testosterone levels?

No: Your pituitary controls a number of hormones including thyroid, growth, testosterone & estradiol, among others. While growth hormone deficiency won't "lower" testosterone, pituitary damage leading to growth hormone deficiency can also lead to hypogonadism or low testosterone. It's also common to have a defect in just one hormone rather than all. Traumatic brain injury is not a major concern. ...Read more

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Can growth hormone deficiency affect testosterone levels?

Not usually: Although both testosterone and growth hormone are stimulated by hormones from the pituitary gland, they are relatively unrelated. ...Read more

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I have hyperparathyroidism due to vitamin d2 deficiency, is it due to my obesity BMI 42, I also have low testosterone, and but B12 deficiency ?

I have hyperparathyroidism due to vitamin d2 deficiency, is it due to my obesity BMI 42, I also have low testosterone, and but B12 deficiency
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Low D & testosterone: Both are common in men who are obese. Vitamin d is needed for calcium absorption in the gut. If this is impaired, the body makes PTH to get calcium from the bone. Fat cells also convert testosterone to estrogen leading to low t. Honestly not sure of B12 connection. ...Read more

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I have testosterone defiency because of subclinical hypothyroidism and i want to know if this depletion will be recovered after hypothyroidism treatment. 18 year old male ?

I have testosterone defiency because of subclinical hypothyroidism and i want to know if this depletion will be recovered after hypothyroidism treatment.  18 year old male ?

Good first step.: It’s worthwhile to try to correct the hypothyroidism (which we wouldn’t really call “subclinical” at this point if it’s causing a testosterone deficiency) and see if your testosterone levels increase subsequently. Be patient, though, as this may take some time - like several weeks to months. Better to try this than to start testosterone supplementation at your age and in this current context. ...Read more

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I am 42 y/o male with testosterone level of 375. Low for my age? Reason for concern?

I am 42 y/o male with testosterone level of 375. Low for my age? Reason for concern?

Low testosterone: Also known as hypogonadism, this condition is diagnosed by blood tests to check hormone levels, and should be done first thing in the morning. In my own practice, I do not and would not administer testosterone replacement therapy without first confirming the diagnosis with properly-timed lab tests. ...Read more

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What is the normal range of free testosterone in nmol/L for a 20 y/o male?

Why do you ask?: You can find reference ranges here. https://www.healthcare.uiowa.edu/path_handbook/handbook/test1802.html Worth remembering. If you used to get great erections and were horny most of the time, and it's largely stopped, you don't have XXY or primary hypogonadism. Losing libido at your age is often due to prolactinoma and/or hemochromatosis with normal testosterone levels. ...Read more

Dr. Alvin Lin
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