It's not uncommon for some changes to occur in the breasts after a breast reduction surgery. Typically, the initial swelling and healing process can take several weeks to months, and during this time, the breasts may change in size, shape, and appearance. Six months post-surgery, it's possible to experience some changes such as minor fluctuations in breast size, sensation, and healing. However, significant growth in breast size after a reduction surgery might be unexpected. If you've noticed a substantial increase in breast size six months after your surgery, it's recommended to consult your plastic surgeon or a healthcare professional who can provide a proper evaluation and guidance based on your individual situation. They will be able to determine whether these changes are normal parts of the healing process or if there might be an underlying issue that needs attention.