IMPERIAL HIGHWAY & PIONEER BOULEVARD PROJECT - Week of March 26, 2017. Project Information. Improvements: HOV lane, one mixed-flow lane in each direction, interchange modifications at San Antonio Avenue undercrossing, Imperial Highway undercrossing, Pioneer Boulevard undercrossing and Orr and Day Road. Start Date: 2013.
Infections can cause mouth ulcers. Herpes simplex often causes mouth ulcers in children and some adults. Other less common viral and bacterial infections may cause mouth ulcers, but this is rare. Mouth ulcers can be caused by anaemia and occasionally by other blood disorders, and some skin or gastrointestinal diseases.
Can cancer cause mouth ulcers? Cancer of the mouth can first appear as a mouth ulcer. The ulcers caused by mouth cancer are usually single and last a long time without any obvious nearby cause (for example a sharp tooth). Any ulcer that lasts longer than three weeks should be looked at by your dentist.