The good news is that hair loss resulting from Thyroid issues isn’t necessarily permanent. Getting the right treatment, which includes a blood test to determine where your hormones are at, is crucial. After diagnosis, readjusting your Thyroid hormone levels with medication can stop hair loss and even get it growing again. Your hair may not recover fully, but it certainly won’t get any worse. That said, it can take several months for your follicles to get back into their natural growing rhythm. Also, make sure you’re getting regular checks on your medication levels, to make sure they stay optimal for you.