Are palm tree thorns in your feet poisonous?

Thorns are not poisonous but they make a puncture wound and can carry dust and dirt deep under the skin and cause a local infection. Even when they seem to be removed in one piece, bits can break off in the wound and cause pain and swelling.

Thorn fragments embedded in your feet can lead to permanent injury. You should definitely be treated by a foot doctor or go to an emergency room or clinic.