The most common factor is neurological headache, which is particularly likely to cause twitch-like pain in the head, accompanied by obvious facial nerve twitching pain. 2. A tendon pain in the head is also related to infectious factors in the head, such as bacterial, viral or fungal infections, especially in facial infections, which can lead to cellulitis of the surrounding skin tissue. 3. Viral infections are particularly likely to lead to viral invasion of the trigeminal nerve, and the tendons in the head will be particularly painful when trigeminal neuralgia occurs, and the pain in one tendon in the head will be severe and unbearable. 4. The pain of a tendon in the head can also occur when the intracranial pressure is increased.