Rapidly Losing Hair - why?

I have been on Levothyroxine 25MCG for about 6-8 months. My hair loss has been dramatic. I am a 50 year old male who had very thick hair until recently. I have lost about 40-50 percent of my hair (receding hair line and top of head) over the last 3-5 months. What is causing this? My doctor says my thyroid (hypo) went from about 9.0 to 4.0. How  can I reverse this hair loss? Should I stop using the Levothyroxine immediately?

[ifupleze]

Do not stop taking your meds.  You should have your blood tested again to make sure where your TSH level is. You are on a really small dose of meds.  Hypothyroidism can cause a lot of hair loss and you might be hypo still.  If that is the case, they will up you dosage and your hair should stop falling out at such a rapid rate.  It might even grow back.

[hypo25]

per many of the forums on here, the hair should stop shedding after 6 to 8 mos. Afterwards, hair should start growing back. I was originally on armour and experienced very little to no hair loss. My dr switched me to levothyroxine and I experienced a lot more hair loss. My current dr switched me to teh brand synthroid and I have lost 40% of my hair and it's still coming out.

I'm in my 6th month of synthroid and am waiting for another 2 mos to see if things get better. If they don't, I'm switching to armour. You should have already regained some hair from the loss.

Also, keep taking your meds until you switch (if you want to). According to new guidlines, TSH levels should be between 0.3 to 3.0. Mine are usually at 1.2 to 1.7.

Good luck!

[stella5349]

It seems the symptom/issue can be associated more with Synthroid than with Armour thyroid.