Headaches are caused due to numerous factors like stress, increased screen time, injury, lack of sleep, dehydration etc. no matter what the reason is, it causes extreme discomfort and pain. Almost everyone has experienced headaches, but can we always tell what is causing it? You might find it surprising but the reason for your undiagnosed headache can be your tooth . The muscles in the face and jaw region can also cause pain due tension build up. Read on to find about the link between your headache and tooth pain: The possible explanation of your headache and tooth pain can be cavities, pus formation, cracked teeth, wisdom tooth pain. ● Infection : Photo by Quora Cavities when left untreated can lead to infection which will eventually affect nerves causing headache. If you are experiencing simultaneous headaches and tooth pain/sensitivity the most likely reason is that particular tooth. You might also see pus formation in the affected region. An infected tooth can