There are many reasons for eyebrow hair loss. The assumption here is that you have alopecia areata. Alopecia areata of the brows can be challenging to treat. But a simple rule exisits- if you still have scalp hair (no alopecia areata in the scalp), there is still a high chance you'll experience regrowth to some degree. Here are a few general comments applicable to anyone with eyebrow hair loss from alopecia areata. 1. I always advise blood test for your thyroid levels ( a test called TSH). Vitamin B12 levels, iron levels (a test called ferritin) and vitamin D (a test called 25 hydroxy vitamin D) can also be considered. If any of these are abnormal - fix it!2. increasing the concentration of steroid injections in the brows. Steroid injections in the eyebrow is easy to do but many physicians worry about side effects such as causing a small indentation (the medical term is atrophy). There may be other long term risks as well. Short term, the risks are fairly low - a common error however is not injecting enough steroid or not injecting frequently enough (ie every 5 weeks)3. Sometimes a short 8 week course of steroid pills (called Prednisone) can be considered. This is not appropriate for everyone and there are a few short term side effects (sleep problems, mood changes, weight gain). The most feared complication of Prednisone pills is a broken bone in the hip (called avascular necrosis). This is extremely rare with 8 weeks of pills. There is always a concern that once the pills are stopped in 8 weeks the hair will fall out again. This can occur but sometimes this 8 week boost is all that is needed to reset things and one can keep the eyebrow hair growing with Rogaine or steroid injections 4. Other treatments include immunosuppressive pills like methotrexate and sulfasalazine. These aren't for everyone and there are potential side effects of taking immunosuppressive pills. However, this small risk needs to be weighed against just how important eyebrows are. 5. Other options like diphencyprone and squaric acid be considered but unfortunately these are available in only a very very small proportion of centers in the USA and a small proportion of centres in Canada6. Another option would be the off label use of bimatoprost (which you may know more commonly as Latisse). Latisse is FDA approves for eyelash loss in those with thin eyelashes. It can help a small proportion of those with alopecia areata. Taken together, there are options. The frustrating thing about alopecia areata is it is unpredictable. But on the flip side - we can't always predict who will benefit from the treatments I outlined above. But many do!I sincerely hope some of this information proves helpful.