I have torn mine 2 times.
The first time was about 10 years ago, when I was being a dunmbass and was maxing out on flat bech.
I was putting up 405 , got it up hald way and then ccchhhheeepppppeerrrplll loopp!
It popped and then I just dropped the weight.
Stupd me, i did not even go to a doc.
I did not have much swellung or any bruising, so i guess it was mild.
Well for yeard since then I could always feel a little something under my armpit when doing chest,
Well, last march I wa doing flat bench again (and I don't do it much, mostly dumbbells )
Anyways, I was doing a normal set, of 275 no problem, on my 5 ot 6th rep all of a sudden it sounded like velcro tearing. There went the weight down to my chest.
I could feel the muscle fold up down into the middle of my chest grom my shoulder where it attches.
I went to the ER that night. I could not move my arm at all.
The next day I had a MRI done. I went to the specialist the next day. He looked at the mri for 2 seconds and said "yup torn pec " but the ligament was still attached!
So he said he could not operate becuase you can't stich muscle to a ligament, it will would just slide off as soon as I tried to rehab it.
Now about 5 months later I have about a 2inch gap between my shoulder and pec where my pec used to be attched to the ligament.
The bruising is all gone , but the pec now is shaped kind of funny.
When I flex that side sits way higher than the other side. It looks awkward.
My strength has really been coming back too.
I am only doing machines.
I can now do about 2 plates per side on the hammer strength equiptment.
I kind of wish I would have gotten a second opinion, but oh well, what can I do now.
I really don't wish this injury on anyone. It looked really gross doe the first couple of mobths with all the blood in my pec muscle.
Thanks