I'm having terrible pain on the inside of my right lower part of my leg, directly above my angle is this a need to be concern?

How long is the pain: r u a smoker .Is there only pain or along with pain there is swelling of the leg. Things like muscular strain-sprain, arthritis pain-ankle , tendinitis, venous clots, arterial insuffienceincy ,arterial clots, small enlarged vein called varicose vein can cause the pain in this region. If swelling is there and if pain is persisting and not going away despite over the counter analgesics,call ur dr.