For several months, Auntie Li kept feeling headache on her left side, and it was getting worse and worse. She wondered if she had “brain cancer”, and she was in a trance all day long, and had difficulty in swallowing food. Accompanied by her family, she came to our outpatient clinic and was advised to see the neurology department. He was admitted to the neurology department with “headache investigation”. The MRI of the head did not show any abnormality, and the treatment in the neurology department did not show any significant improvement. At the same time, Auntie Li also felt pain in the left side of her throat and could not eat well, so she asked the ENT department for consultation. During the consultation, the otorhinolaryngologist made detailed inquiries, and Auntie Li felt unilateral pharyngeal pain, with radiating pain centered in the earlobe, radiating down to the neck and up to the head. After examination, no abnormality was found in the external auditory canal, and bilateral tonsils were seen in the pharynx, and hard strips could be found in the upper tonsils of the pharynx. After the X-ray examination, the patient was diagnosed as having “stromal syndrome” in combination with the clinical diagnosis, and was referred to the ENT department for treatment. After the left tonsillectomy + left stalk amputation, the left stalk was found during the operation, and after the separation, the patient’s headache and sore throat symptoms disappeared after the operation. One month after the operation, Auntie Li came to the ENT for a review and happily told the doctor that her pre-operative headache and sore throat had disappeared, and she was eating and sleeping very well. Stromal syndrome, also known as stromal hypertelorism, is normally 2.5cm long. If it exceeds this, it may cause pain in the pharynx, and the pain may radiate to the ear, and may even manifest as headache. But is it true that all stromal processes over 2.5cm in length can cause pharyngeal symptoms? The answer is no, it is related to the degree of calcification and the direction of growth. Take Auntie Li as an example, the left side of her stem was 3.4cm and the right side was 3.7cm, while the symptoms were on the left side. Intraoperative palpation also confirmed that the right caudate was not calcified, while the left caudate was completely calcified and protruded into the pharyngeal cavity. Taken together, stem syndrome is defined as a general term for symptoms such as foreign body sensation in the pharynx, sore throat or reflex otalgia, head and neck pain and increased salivary glands caused by excessive stem length or its abnormal orientation or morphology stimulating the adjacent vascular nerves. Therefore, this disease should be considered for patients with unilateral headache and sore throat.