One of the distressing symptoms that gets asked about here on the forum, is about hair loss. Often, the member has been recently started on levothyroxine, noticed a marked increase in hair loss and is convinced that this is a 'side effect'of the medication.
I came across this article, which I feel explains this issue well.
Does Levothyroxine Cause Hair Loss?
Off-kilter hormones can easily disrupt the delicate hair growth cycle. This disruption is especially true for thyroid hormones, which are responsible for regulating the cellular growth and metabolism of every cell in your body. Hair loss is a common side effect of hypothyroidism, but it is a treatable problem. However, many people wonder if levothyroxine, the most commonly prescribed treatment option for hypothyroidism also causes hair loss. Ahead, a look at if levothyroxine causes hair loss.
Understanding the hair growth cycle
There are three primary phases of the hair growth cycle: anagen, catagen, and telogen. Every strand on your head follows its own growth cycle, which means that you will not lose all your hair at one time when they switch to the shedding phase.
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