I fell going up our stairs

Over a week ago I was going up our stair to go to bed.  On my way up the stairs, I slipped  and the edg of the step hit directly below my knee.  Ever since this incident I have been unable to kneel down and put pressure on the area without severe pain.  I am a runner and have been able to run long distances without discomfort, but I am extremely concerned about the pain that I am having.    Dumb question, but does the injury warrant a trip to the doctor?

[Dr_Veena]

Hi,
    How are you? Knee pain can occur in a number of conditions like arthritis, gout, psoriasis, bursitis, baker’s cyst, reactive arthritis, trauma etc.

As in your case the cause for pain in the knee is very evident that it is due to trauma, it would be better to get an X- ray of the knee done to know whether any fracture has occurred, or any ligament rupture or bursitis etc.

Do you have any swelling and redness over the knee? Movements in the knee joint restricted? If it is a fracture it would require surgical repair. In other conditions anti-inflammatory drugs like ibuprofen, and rest would be enough.

Get an X- ray done and visit a orthopaedician.
All the best.