Anxiety
chicken fat
Small wounds on the ankles. Bug bites would be a good candidate.
The most likely causes are either that your shoes are too tight, or the friction between your shoes and your ankles are causing irritation.
Swelling, mainly from a virus or a bacterial infection.
Stress, in some shape or form.
Ring worm can cause a series of red circles near the ankles. This is a condition that can happen to anyone.
Possible causes are higher than average foot arches, bowed legs or weak ankles.
Maybe something hurt it or maybe it is infected
cramp
The causes of ankle swelling at age 53 can be spraining, arthritis, osteoporosis, blood issues, and reaction to coldness.
If you have a pet, it could be flea bites or something else I am not familiar with.