There is a point of pain under the left rib cage next to the heart fossa, which can be caused by the rib cage itself, intercostal neuralgia, herpes zoster and other factors. 1. Diseases of the rib cage itself: Osteoma, osteoid osteoma and benign tumors occurring in the rib cage, or malignant tumors in other parts of the body metastasize to the rib cage, or multiple myeloma and other diseases occurring in the rib cage, which may cause pain in a certain point of the rib cage. 2. Intercostal neuralgia: Intercostal neuralgia can be manifested as a pain symptom at a certain point of the ribs, which is radiating pain or hidden pain, and the pain range can also be distributed in a semi-ring shape. 3. Herpes zoster: Infection with varicella zoster virus can lead to the appearance of herpes zoster, which can be localized in the ribs and accompanied by pain symptoms. When there is a point of pain on the left side of the heart next to the ribs, you need to consult a doctor in a timely manner, under the guidance of specialists to actively carry out appropriate treatment, which will help to alleviate the uncomfortable symptoms as soon as possible.