Boyd’s Bible Dictionary:
(flowing with blood). Hemorrhoids or piles (Deut. 28:27; 1 Sam. 5:6-12; 6:4-11).
Concise Bible Dictionary:
Hemorrhoids or tumors. One of the diseases of the Egyptians, and with which the Philistines were smitten when they had possession of the ark. They returned “images” of the same with the ark (Deut. 28:27; 1 Sam. 5:6-12; 1 Sam. 6:4-17).