Hello,
Large knot behind the knee can be due to the
cyst (Baker's cyst). It is usually associated with Arthritis(OA/RA).
The knee may get swollen, there may be
stiffness & pain. Visit ER, get physically examined, get investigations like Blood tests. CT, MRI be done to rule out
deep vein thrombosis.
Get tests for RA & OA be done, get evaluated get treated at the earliest. Your treatment will depend upon the pathology (aspiration/surgery) & the severity detected.
In the meantime, use a cane or a
crutch, do not strain unnecessarily, stay comfortable.
For pain take
Ibuprofen or NSAIDS, if OA or RA is detected, take medications regularly & do regular exercises(knee exercise/stretch exercises).
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Nupur K, General & Family Physician