乳房有硬块但是不疼是怎么回事

Breast lumps without pain may have the following causes: 1. Physiological factors: The breast structure primarily consists of fatty tissue and mammary glandular tissue. Small, cord-like firm areas may be felt upon touch, which is a normal part of breast anatomy. 2. Fibroadenoma: This may be related to changes in hormone levels or the use of estrogen-like medications. It presents as a painless breast mass, and in rare cases, mild distension or dull pain may occur during the menstrual cycle. 3. Mammary hyperplasia: This may result from abnormal breast development or involution processes. Hyperplasia can lead to increased breast tissue, nodule formation, and breast firmness. However, it typically does not damage surrounding nerves and therefore does not cause pain. Although painless lumps are not necessarily indicative of a serious condition, it is still advisable to consult a doctor for evaluation and diagnosis to rule out potential health issues.