Golly, why are you uptight about your ankles? If your hair was there before you can try one of the over the counter products that promotes hair growth, but, you'll be spending money in what many folks would consider a silly way, with marginal results, at best. You may just need to suffer through it.
I don't think most folks are going to be to concerned about it.
kneedraggen saidI know of several reasons for hair loss on the distal legs.
1. poor arterial circulation.
2. under active thyroid
3. hereditary hemochromatosis...this is disease of iron metabolism and can cause lethal problems if not treated aggressively
I'm sure there are more causes. I would check with a physician to be certain that you do not have any of the above medical problems. Anabolic steroids can cause hair loss.
Note that aromtazing androgens (DHT is what fires up hair on loss on folks WHO HAVE THE GENE) cause hair loss in those folks who have the gene for it, whether, or not you take extra androgen, or not. Higher androgen levels, along with the gene, promote hair loss and it's almost always just on the head. If you have the gene for hair loss, the only way to stop it is get rid of the DHT (yes there's drugs for that, too) but since ALL testosterone aromatized to DHT, if you want the up side of DHT, and you like being a guy..well..you get the picture. It's wrong / bad information to make the about hair loss and AAS, and around the ankles, at that. Some AAS, do NOT aromatize, and do not raise DHT, and therefore do NOT promote hair loss, just to set the record straight.
Before making such proclamations, it's likely wise to do further research.