Hypothyroidism does cause hair thinning and fall. Specially eyebrows outer 1/3rd. My advice would be to keep checking your thyroid levels every three months. Take Thyroxine everyday. Once you become euthyroid on medication, the hair will slowly grow back. For the time being, maybe you can avoid getting your eyebrows done, the more you thread it, the lesser the growth will be. Can try to put castor oil/ coconut oil or olive oil for the rest of the hair to maintain its lustre.

Consult endocrinologist at the earliest.

Take online consultation for further managemnet Need details history Avoid stress

Need detailed history and evaluation with all reports