'Ulcers' in the Bible

You are not to bring to the LORD an offering that is blind, fractured, mutilated, or infected with ulcers, scurvy, or scales. You are not to present any of them as an offering made by fire on the altar for the LORD.

Jehovah will smite thee with the ulcers of Egypt, and with boils, and with the scab, and with the itch, whereof thou canst not be healed.

Jehovah will smite thee in the knees and in the legs with evil ulcers, whereof thou canst not be healed, from the sole of thy foot unto the top of thy head.

So the first angel went and poured out his bowl on the earth; and loathsome and malignant sores came on the people who had the mark of the beast and who worshiped his image.

and they blasphemed the God of heaven because of their anguish and their sores (abscesses, boils); and they did not repent of what they had done nor hate their wickedness.