Print

In most observed cases a small, hard, swollen, white welt may develop at the site of each bedbug bite. This is often surrounded by a slightly raised red bump and is usually accompanied by severe itching that lasts for several hours to days. Welts do not have a red spot in the center such as is characteristic of flea bites. In other cases, it is observed that welts first appear upon the incessant scratching that is triggered by the bite, and seem like a mosquito bite that increases in size upon scratching. Later, however, the welts subside but tend not to disappear like those from mosquitos, and persist for up to several weeks.