After breast augmentation, why is there "morning boob" which is the hardening of your breast tissue?

Early in the breast augmentation recovery, your pectoralis muscles are not yet "accustomed" to being permanently stretched by the presence of submuscular implants. At night you do not swing or use your arms very much (except for minimal movements as you shift your body and/or dream), and your pectoralis muscles tighten up to try to return to their previous unstretched state. Morning firmness results.

As you wake up and move around, this gets better, at least if you have little muscle inflammation or bruising, which of course improves as your recovery progresses. Too much movement causes bleeding, so don't over do it, and follow your surgeon's activity restrictions scrupulously!

Your muscles will reach a new steady state as time goes by (every patient is different), and this morning firmness will go away permanently. Fear not, this is normal! Best wishes! Dr. Tholen

It's not unusual for patients to have muscle spasm following breast augmentation surgery, especially when large implants are placed beneath the pectoralis muscles. This often results in the breasts being hard and firm. This seems to be more noticeable in the early morning after a night of inactivity.In most cases, spasm has resolved in three to four weeks following surgery. In the short term, muscle relaxants, stretching and massage can provide relief and shorten the duration of muscle spasm.

The tightness you experience in the morning is due to swelling. During the day, gravity pulls fluid toward your feet. When you sleep, the fluid redistributes, which is why you wake up every morning with puffy eyes. Since you just had breast surgery, this area is inflamed, and fluid goes to this area. Eventually this will stop.

If you sleep in a sitting position you can minimize this, but it will not hurt your final results.

   At 6 days, the swelling and sensation of hardness is temporary.  As swelling goes down and the muscle relaxes the supple nature of the breast tissue will return.  This may take several months.

Thanks for your excellent question… in the immediate postoperative period, the tissues over your implant are stretched and need to accommodate to their new position.  When the muscle tissue is stretched, it sometimes resists a bit with some temporary tightening.  This causes some firmness in the early postoperative period, but should subside by itself over the next few weeks.