The most severe cases can cause skin atrophy, ulceration and gangrene.

Mechanical stimulation may also cause erosion and ulceration.

Entropion or distichiae may cause ulceration of the peripheral cornea.

FHV-1 causes ulceration by direct infection of the epithelial cells.

Accidents, both from injuries or harmful substances entering the eye, can cause scarring and ulceration.

In rare cases it can cause ulceration and ischemic gangrene.

It can cause breathing difficulty, skin irritation and ulceration.

In fact, the harsh solutions were causing ulceration and hemorrhaging.

Many infections can cause oral ulceration (see table).

Occasionally, irritant contact dermatitis can cause skin blistering and ulceration.