My daughter woke up with this huge spot on her foot I don’t know what it could be. She’s been in pain and can’t move her foot what is this.. Explain this

Repetitive motions that create pressure on the skin

Blood blisters in the mouth can result from:

Accidental biting

Dental procedures

Sharp or poorly fitting dental appliances

In some cases, blood blisters may appear more easily in people with:

Thin or fragile skin

Circulation issues

Diabetes

Certain blood or clotting disorders