The possible causes of breast swelling after ovulation include hormonal change factors, breast enlargement, breast fibroids, etc. The cause should be clarified and treated accordingly. Common causes and treatments: 1, hormonal changes: women enter ovulation, the body estrogen and progesterone levels can change, resulting in breast swelling or edema, mainly manifested as post-ovulatory chest swelling, pain, etc., which is a normal physiological phenomenon, without special treatment; 2, breast hyperplasia: in addition to the symptoms of chest swelling, if you can touch the patient’s breasts can be felt in varying sizes, flat or irregular If you can touch the patient’s breasts and feel nodules of different sizes, round or irregular shape, soft texture, unclear border, no adhesion to the skin and deep tissue, can be pushed, and accompanied by tenderness, the patient may have mammary hyperplasia, and should promptly go to the hospital for mammography, breast MRI and other examinations. After the cause is clearly identified, the symptoms can be relieved by using medication that activates blood circulation, softens blood stasis and disperses nodules under the guidance of a doctor, and if necessary, surgical treatment; 3. Breast fibroids: If estrogen is used for a long time or there is endocrine disorder, it may cause excessive hyperplasia or structural disorder of the epithelial tissue and fibrous tissue of the breast, thus forming breast fibroids. The main manifestation is breast lumps, accompanied by irregular chest swelling, and a small number of patients may experience breast pain, which should be surgically removed under the guidance of a doctor. Note: Women need to relax, avoid prolonged stress, develop regular habits, don’t stay up late, and stay emotionally optimistic; choose the right size of underwear, it is not recommended to wear tight underwear.