Thanks for writing to us.
The pain in the knuckles on bending is likely to be due to associated ligament injury
. Give adequate rest to the area for proper healing. Avoid bending it till the pain subsides completely.
I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL http://bit.ly/Dr-Praveen-Tayal
Dr. Praveen Tayal