How Long Does Telogen Effluvium Take to Regrow?

(female) I was diagnosed with Telogen Effluvium triggered by Thyroid and possibly low Ferritin/low Vit D. I lost about 1/2 of my hair Feb-April 2009. The thyroid stabilized Aug 2009 and Ferritin/Vit D returned to normal Jan 2010. I’m not seeing any regrowth. In general, would you expect my hair will grow back (it’s now been 1 year since it fell out)?

There is no certain answer to this question when there are complex underlying issues that caused the hair loss. The more issues, the more difficult it is to predict. I would hold out for a full year since your iron levels were normalized and see if over that time the hair came back. I wish I had a more specific time frame to give you, but it’s just not that simple.