It is possible to develop breast cancer at the age of 18, and you should consult a doctor promptly after discomfort occurs to avoid delaying your condition. Breast cancer is a malignant tumor that occurs in women, and although the most common age is above 45 years old, age is not the only risk factor for breast cancer. The occurrence of the disease is related to various factors such as more estrogen, overweight or obesity, alcohol consumption, heredity, gene mutation, etc. Therefore, it is still possible to get breast cancer at the age of 18. In the early stage of the disease, it only manifests as painless lumps in the breast, and in the later stage, it may manifest as nipple overflow, nipple retraction, breast pain, cellulite and other clinical manifestations, and should go to the hospital for standardized diagnosis and treatment in a timely manner after similar manifestations, so as to strive for early detection, early diagnosis, early treatment, and obtain a better prognosis. It is recommended that when breast discomfort occurs, consult the hospital in time to find out the cause and treat it under the guidance of the doctor, so as to avoid delaying the condition.