Muscle growth
More volume is not the default answer.
Hypertrophy is slower and harder to read than a barbell PR. Start by deciding whether the target muscle has actually stalled, then look at the current training dose, performance, exercise stability, effort and nutrition before changing the plan.
1
Make the evidence readable
Use stable exercises, a useful block length, consistent photos or measurements and the relevant bodyweight trend.
2
Read the dose and response
Look at direct weekly work, exercise performance, set quality and whether later work is still productive.
3
Change one variable
Add volume, change loading, adjust exercise selection or fix the baseline only when that variable has a case.
Hypertrophy decisions
Start with the constraint you can actually test.
Muscle growth stalled
A flat exercise or one mirror check is weak evidence. Make the outcome readable before you diagnose a hypertrophy plateau.
Read →When should you add sets?
Volume is a variable, not an automatic fine for failing to grow fast enough. Check the current dose and response first.
Read →Volume vs intensity
Load, effort and recoverable weekly work solve different parts of the hypertrophy problem.
Read →The hardgainer question
Before you blame genetics, make sure the training, progression and recovery actually gave growth a fair test.
Read →Does cardio kill gains?
Conditioning and muscle gain can coexist. The question is how the work is organised and recovered from.
Read →Soreness is not the result
Novelty and damage can make you sore without giving you a better long-term progression signal.
Read →Strength is supporting evidence
A stronger exercise does not directly measure muscle growth.
Performance in target exercises is useful, but technique and task skill can improve too. Hypertrophy needs a longer run of evidence than one exercise number.
Strength problem instead?
Use the progression library.
If the actual complaint is that a lift stopped moving, the strength progression tools are a cleaner starting point.