Women with pins-and-needles pain in the left chest have different treatment measures depending on the cause, and patients need to analyze the symptoms in conjunction with other symptoms, not to be generalized. If a woman has a pins-and-needles pain in her left chest, it is more likely that she has mastocytosis, especially in middle-aged women, and exertion or emotional excitement can also lead to the onset of symptoms. Mammary gland hyperplasia is a common benign disease associated with increased estrogen levels in the body. Patients are advised to visit the mammography department and have their symptoms clarified by mammography ultrasound. If a patient has tingling pain in the left side of the chest, even radiating to the back of the shoulder and scapula, it is important to consider the presence of heart disease such as angina pectoris, and a visit to the cardiovascular medicine department is recommended. In addition, it should be noted that if a woman experiences a pins and needles pain in the left chest, it can also be caused by intercostal neuralgia or herpes zoster, which should be treated in conjunction with specific symptoms.