The reason for this is as follows: 1. It can be considered as a result of cold wind blowing or other causes of nerve tension in the scalp, which can be alleviated after massage or warming. 2. It can also be seen as a result of organic diseases, such as intracranial occupational diseases, especially frontal lobe occupational diseases, which can also appear as pain in the forehead, and the distension is more obvious, after head CT or nuclear magnetic examination. The pain can also be clinically caused by sinusitis, especially sinusitis of the maxillary sinus, which can be induced after a cold, and the person can have a severe frontal headache. 4. clinically it can also be seen in the pain of the maxillary branch of the trigeminal nerve, the pain is particularly intense, and in severe cases it can be cut-like pain.