Capsular contracture (hardened scar tissue) after breast augmentation can occur in about 10% of all patients. There are different degrees of capsular contracture, mild feeling firm to the touch, to severe where the breast implant is visible and the patient may experience pain. If you develop this hard scar tissue, it can be stable or it can become worse or harder with time. You don't necessarily have to have surgery unless you have pain or the cosmetic appearance of your breast is unacceptable to you. Some patients with mild scar tissue will choose not to have surgery. However, if you have noticeable asymmetry between the two breasts, you may consider proceeding with revision surgery. Keep in mind, the surgery itself to remove the scar tissue can potentially cause scar tissue formation again in the future.
Please discuss your surgical options with your plastic surgeon.