Symptom of small red lump on thigh

Hi, welcome to the ehealth forum and I am glad to help you.
You seem concerned by the small red lump outer thigh present for over a year and now you getting the pains down the same leg in hip, knee and ankle.
It is very difficult to comment on lump without examination but it might help as the soft/firm lumps are lipomas and usually innocuous; harder lumps might be calcium deposits. Until the lump is not causing any symptoms you need not be overly concerned but since now you are feeling pain down the same leg, you must consult your personal physician for evaluation and diagnosis as the same cannot made online.
Hope this helps. Take care.
Note: This post is not to emphasise final diagnosis as the same cannot be made online and is aimed just to provide medical information and no treatment suggested above be taken without face to face consultation with health care professional.