1 Samuel
King James Version (KJV)

“And it was so, that, after they had carried it about, the hand of the LORD was against the city with a very great destruction: and he smote the men of the city, both small and great, and they had emerods in their secret parts.”
King James Version (KJV)
5:9 Hidden parts - In the inwards of their hinder parts: which is the worst kind of emerods, as all physicians acknowledge, both because its pains are far more sharp than the other; and because the malady is more out of the reach of remedies.