Left pec bigger than right

[Taylor402]

my left pec has started getting quite a bit bigger than right.

should i use heavier weight on my right when doin chest press or should i do a few extra reps with right ?

[Brofessor]

If you are working them equally, how did one become larger than the other? Are you sure it's the muscle? My right right pec appears larger, but my rib cage is actually uneven and protrudes more on one side.

If it is the muscle, you should continue working them evenly with weight that the weaker side can handle and allow it to catch up.

[tonzoffun]

if you are right arm handed you tricep is going to be stronger than you left hand tricep, that being said

you secondary mover for the bench is going to be your tricep

so if your left tricep is is weaker that means you left pec has to do more work than your right pec

no do not do anything different you are the only person that can tell

keep lifting and it will work it`s way out

[Taylor402]

i think my left arm is using more effort and struggling more when doing chest press so its getting a better workout.
my right is finding it easier so not getting as much pump in my right

[undrconstruxn]

i think my left arm is using more effort and struggling more when doing chest press so its getting a better workout.
my right is finding it easier so not getting as much pump in my right

Have you had somebody assess your form? You see guys benching at the gym all the time that have one side of the bar lower on every rep. Could be a lot of things besides the chest or tricep muscle. You could unconsciously be tilted a little on the bench. Your back muscles are important to the chest press and could be uneven. Same with your shoulders.

Have somebody take a video of your form at all angles and see what you see.

[carlson61]

One whole side of me is more defined than the other. My deltoid is rounder, my tricep pops more, my bicep vein shows more, I have like an extra side ab muscle, and my leg is more defined. There are several reasons for this - similar to how girls can have one breast larger than another, its genetics. I've also have had knee surgery and routine elbow problems which Im sure has lead to one side overcompensating for the other and unbalanced form.

Regardless, its fairly common/normal to not be symmetrical. But, as others mentioned, it can be due from poor form. Have someone watch your form. Also try and use dumb bells so each side has to work independently where as machines and barbells allow one side to assist the other.

[Cadences]

Throw some dumbbell flyes/dumbbell press/incline of either into your routine to ensure that the right pec is getting just as much work.

That being said, I know the feels brah. Right pec is bigger than left pec here.

[ironwill2008]

my left pec has started getting quite a bit bigger than right.

should i use heavier weight on my right when doin chest press or should i do a few extra reps with right ?

How long have you been training on a consistent basis?