Damaged Visas
Exposure to the elements, such as water or heat, can damage your visa. if your visa is damaged, faded or otherwise unreadable in any way, you may consider replacing it. Airlines may deny boarding to travelers with damaged visas, depending on the extent of damage. A damaged visa may also cause immigration officers at U.S. ports of entry to scrutinize your travel documents closely, causing you extensive questioning and possible delay.
The decision on whether to replace a damaged visa is exclusively yours. The U.S. Embassy cannot speak for how an airline official or immigration officer may treat a damaged visa. To replace your damaged visa, follow the regular procedures for applying for a visa, including payment for a new application at this link.