The coincidence of injury and tumor is apt to be overestimated because of the strong tendency to connect succeeding events.

Tumors are not most common on those parts of the body which are most exposed to injury.
They are rare, for instance, on the hands and feet, and very rarely do they appear at the site of wounds caused by surgical operations.

For those tumors which develop in intra-uterine life it is difficult to assign injury as a cause.

There does, however, seem to be a relation between tumors and injuries of a certain character.

The natives of Cashmere use in winter for purposes of heat a small charcoal stove which they bind on the front of the body; burns often result and tumors not infrequently develop at the site of such burns.