Strength Training
Glute Imbalance: Why One Glute Is Bigger Than the Other and How to Fix It
Uneven glutes are one of the most common things women ask me about. Here is why one side ends up bigger, weaker, or harder to feel, when a difference is normal, and the step by step approach I use to even it out.
Why Is One Glute Bigger Than the Other?
If one side of your glutes feels weaker or doesn’t activate as well as the other, you’re not imagining it. Glute imbalance is a common issue that affects strength, symmetry, and even posture, especially for women over 40. It can sneak up over time, causing strength plateaus, uneven muscle development, and even discomfort in your hips, knees, or lower back.
Most of the time, one glute is bigger than the other because one side has been doing more of the work. A dominant leg, old injuries, and daily habits like standing with your weight on one hip gradually build one side and let the other fall behind. A small difference is normal, since almost no one is perfectly symmetrical. A noticeable gap in size, strength, or how each side feels during training is a glute imbalance, and targeted single leg work is how you close it.
The good news? You can correct glute imbalances with targeted strategies, helping you build a stronger, more balanced lower body that supports everything from lifting heavier in the gym to feeling confident in your favorite jeans.
Let’s break down what glute imbalance is, why it happens, and most importantly, how to fix it.
Is It Normal to Have One Glute Bigger Than the Other?
Yes, to a point. The human body is not a mirror image. Your dominant hand is stronger than your other hand, and your legs and hips work the same way.
Even your skeleton is rarely even. A review of x-ray studies found that about 90 percent of people have some difference in leg length, averaging around five millimeters, and that differences that small are rarely significant (Knutson). A slightly shorter leg or a pelvis that sits a little rotated can make one side of your seat look fuller or lower in the mirror, even when the muscle underneath is close to even.
What matters is the size of the gap and whether it shows up in your training. These are the signs of a glute imbalance worth working on:
- A visible difference in size or shape that has grown over time
- One side that feels noticeably weaker on single leg exercises
- Feeling one glute working while the other feels like nothing is happening
- Your hips shifting to one side when you stand up from a squat
- Aches that keep showing up on the same side of your hip, knee, or lower back
If that sounds like you, you are dealing with a muscular imbalance, and the rest of this article is how to fix it.
What Is Glute Imbalance?
A glute imbalance happens when one side of your glutes is stronger, larger, or more engaged than the other. This asymmetry can impact your performance in lower-body workouts, create muscular compensations, and even increase the risk of injury.
Your glutes are made up of three key muscles, each playing a unique role in strength, stability, and movement:
Gluteus Maximus
The largest and most powerful of the three, this muscle is responsible for hip extension, thrusting power, and overall shape of the glutes (Elzanie and Borger). It’s the primary driver in movements like Back Squats, Romanian Deadlifts, Hip Thrusts, and lunges, generating force for explosive movements like jumping and sprinting. Weakness or imbalance here can lead to lower back strain and poor posture.
Gluteus Medius
Located on the outer side of the hip, this muscle is crucial for hip stability and balance (Flack et al.). It prevents your hips from dropping when walking, running, or standing on one leg. A weak or underactive glute medius can contribute to knee valgus (knees caving in), hip pain, and compensations that strain the lower back and IT band. Targeting this muscle with side-lying Clam Shells, Lateral Band Walks (also called X band walks), and single-leg exercises helps correct imbalances.
Gluteus Minimus
The smallest of the three, this deep muscle works alongside the gluteus medius to stabilize the hip joint and assist in abduction (moving the leg outward). It also plays a role in pelvic alignment and controlling side-to-side movement. Weakness in this area can lead to hip instability, uneven movement patterns, and an increased risk of lateral hip pain. Strengthening exercises include side-lying leg lifts, banded Hip Abduction, and single-leg stability drills.
Each of these muscles needs to function properly to ensure balanced glute development, injury prevention, and improved athletic performance. When one is weaker or underactive, other muscles compensate, leading to glute imbalances, uneven strength, and potential discomfort in the lower body.
When one side isn’t pulling its weight (literally), your body compensates, leading to muscle imbalances, discomfort, or stalled progress.
What Causes Glute Imbalances?
Several factors can contribute to uneven glutes, but the most common reasons include:
1. A Dominant Side Taking Over
Most of us have a dominant leg, just like we have a dominant hand. This side naturally does more work during squats, lunges, and daily movement, causing muscle imbalances over time.
2. Poor Muscle Activation
If your glutes aren’t firing properly, your quads, hamstrings, or lower back might take over instead. This is especially common for women who spend a lot of time sitting, which many coaches describe as glute inhibition (basically, your glutes ‘forget’ how to work properly).
3. Previous Injuries or Compensations
Even a minor injury, like a sprained ankle or hip tightness, can lead to uneven muscle engagement. Your body instinctively shifts weight away from discomfort, creating compensatory movement patterns.
4. Repetitive Movement Patterns
If you always cross the same leg while sitting, sleep on the same side, or favor one leg when standing, you could be reinforcing imbalance without even realizing it.
Why Does One Glute Feel Weaker or Tighter Than the Other?
This is the question I hear most from women who already train. You feel your right glute burning on hip thrusts and almost nothing on the left. Or one side always feels tight and knotted while the other feels fine.
Both usually come from the same place. The stronger side has learned to take over, so it fires first and works harder. The weaker side gets less work, grows less, and falls further behind. A glute that feels tight can be a glute that is working overtime to steady your pelvis because the other side is not doing its share.
Feeling one side more is useful information, because it tells you where to start. Lead your single leg sets with the side you feel less, match the reps on your stronger side to what the weaker side completed, and slow down enough that you feel the working glute on every rep.
If one glute hurts rather than just feeling tired or tight, especially pain that travels down your leg, that is a different situation. I cover it below.
How to Fix Glute Imbalances: Step by Step
The key to correcting glute imbalances is intentional activation, unilateral training, and proper movement patterns. Here’s how to get started:
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1
Strengthen Each Side Independently
Incorporate unilateral exercises (single-leg movements) to force both sides to work equally. Try:
Use lighter weight at first to focus on proper activation, then increase load as both sides even out.
Step ups for glutes help with activation and isolation of the glute muscles.
Bulgarian Split Squat -
2
Prioritize Glute Activation Before Lifting
If one side is weaker, it needs extra activation to fire properly during workouts. Try 5 to 7 minutes of activation before training, using:
These warm-ups help ‘wake up’ your glutes so they engage properly.
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3
Check Your Form and Movement Patterns
When squatting, lunging, or deadlifting, watch for:
- Shifting weight more to one side
- Uneven hip height when standing up
- Knees caving inward
Filming yourself or using a mirror can help spot imbalances. If you notice a shift, slow down, use lighter weight, and correct alignment before adding intensity.
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4
Adjust Your Training Volume
If one side is noticeably weaker, you can train it slightly more to bring it up to speed. Try adding an extra set of single-leg exercises on the weaker side until balance improves.
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5
Be Patient and Consistent
Fixing glute imbalances takes time, but with focused work, you’ll start to feel stronger, more even, and more powerful in your lower-body workouts.
When It Is Not a Muscle Imbalance
Most uneven glutes are muscular, and they respond to training. Some are not.
A leg length difference, scoliosis, or a pelvis that sits rotated can change how your glutes look and load, and no amount of single leg work will change your skeleton. If you have trained consistently for several months and the difference has not moved, a physical therapist can assess your hips, pelvis, and spine and tell you what you are working with.
Talk to your doctor if one glute suddenly looks different without a change in your training, if you notice a lump or swelling, or if you have pain, numbness, or tingling that runs down your leg. Those are not training problems. I am a coach, not a physician, and there are things that belong in a doctor’s office.
Final Thoughts: Stronger Glutes, Stronger Body
Glute imbalances are common, but they don’t have to hold you back. With intentional activation, unilateral work, and proper movement patterns, you can build balanced, strong glutes that support your training, prevent injuries, and enhance your physique.
Single leg work is one piece of a bigger plan. To see how I build strength over time, read my guide to progressive overload for women, and for full lower body sessions, try my butt workouts for women.
Frequently Asked Questions About Glute Imbalance
Is it normal for one glute to be bigger than the other?
Yes. Some difference between your left and right glute is normal, because almost no one is perfectly symmetrical. Most people favor one leg, and most people have a small difference in leg length that can make one side of the seat sit a little fuller or lower. It becomes worth addressing when the gap is easy to see, has grown over time, or shows up as one side feeling weaker or working harder in your training.
Why is one of my glutes bigger than the other?
Usually because one side has been doing more of the work for a long time. A dominant leg, an old ankle, knee, or hip injury, and daily habits like standing with your weight shifted onto one hip all teach one glute to take over. The working side grows and the other side falls behind. Less often, a leg length difference, scoliosis, or a rotated pelvis changes how the glutes look and load, which is worth having a physical therapist assess.
How long does it take to fix a glute imbalance?
Most women notice a difference in how each side feels and activates within a few weeks of consistent single leg training. Visible change in size and shape takes longer, usually a few months, because building muscle is a gradual process at any age and especially after 40. The size of the gap, how long it has been there, and how consistently you train all affect the timeline, so judge your progress over months rather than weeks.
Can you fix uneven glutes fast?
There is no fast fix for uneven glutes, and anything promising one is overpromising. What you can change quickly is how each side works. Most women feel the weaker glute engage better within a few weeks once they lead with it, slow their reps down, and add activation work before training. Visible change in muscle size follows over the next several months with consistent single leg training and enough protein and calories to build muscle.
What are the symptoms of a glute imbalance?
The most common signs of a glute imbalance are one glute that looks larger or fuller than the other, one side that feels noticeably weaker on single leg exercises, feeling one glute working while the other feels like nothing is happening, your hips shifting to one side when you stand up from a squat, and aches that show up on one side of your hip, knee, or lower back. One sign alone is not much to go on. Several together point to an imbalance worth training.
What are the best exercises for a glute imbalance?
Single leg exercises are the most effective way to fix a glute imbalance, because they stop the stronger side from taking over. Single leg glute bridges or hip thrusts, Bulgarian split squats, step ups, and single leg Romanian deadlifts cover the gluteus maximus. Lateral band walks, clamshells, and banded hip abduction target the gluteus medius and minimus on the side of the hip. Start lighter than you think you need and focus on feeling the working glute on every rep.
Should I train my weaker glute more?
Yes, within reason. Adding one extra set of single leg work on the weaker side is a simple way to help it catch up. Start your single leg sets with the weaker side, then match the reps on your stronger side to what the weaker side completed rather than letting the strong side do more. Once the two sides feel and perform about the same, go back to equal work on both.
Why do I feel one glute more than the other?
Feeling one glute more than the other usually means the stronger side has learned to fire first and take over the movement. It is common and it is fixable. Slow the lowering phase of each rep, pause at the top of bridges and thrusts, and do a few minutes of activation work such as lateral band walks or clamshells before you train. Leading your single leg work with the side you feel less also helps retrain the pattern.
If you want to see what this looks like when a woman stops guessing and follows a plan built for her body, read through the FITBODY success stories.
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References
Elzanie, Adel, and Judith Borger. “Anatomy, Bony Pelvis and Lower Limb, Gluteus Maximus Muscle.” StatPearls, StatPearls Publishing, updated 1 Apr. 2023. NCBI Bookshelf.
Flack, N. A., et al. “A Review of the Anatomy of the Hip Abductor Muscles, Gluteus Medius, Gluteus Minimus, and Tensor Fascia Lata.” Clinical Anatomy, vol. 25, no. 6, 2012, pp. 697-708. PubMed.
Knutson, Gary A. “Anatomic and Functional Leg-Length Inequality: A Review and Recommendation for Clinical Decision-Making. Part I.” Chiropractic & Osteopathy, vol. 13, 2005, p. 11. PubMed.