Symptoms
Scaphoid fractures usually cause pain and swelling at the base of the thumb. The pain may be severe when you move your thumb or wrist, or when you try to grip something.
Unless your wrist is deformed, it might not be obvious that the scaphoid bone is broken. In some cases, the pain is not severe, and may be mistaken for a sprain.
Any pain in the wrist that does not go away within a day of an injury may be a sign of a fracture. A simple "sprained" wrist is very rare and it is important to see a doctor if pain persists.