Quick heads-up: This article is for general education, not a diagnosis. If your hip pain is sharp, worsening, or won’t quit showing up like an uninvited party guest, a healthcare professional or physical therapist is your best next click.
So you’re doing ab exercises, minding your business, trying to earn those “I totally plank” bragging rights… and thenbamyour hip starts complaining. Sometimes it’s a pinch in the front of the hip, sometimes it’s a groin-y tug, and sometimes it’s a loud “NOPE” that makes you abandon your leg raises mid-rep like the floor is suddenly lava.
Hip pain during ab workouts is common, and it’s usually not because your abs are “weak” or you’re “bad at fitness.” More often, it’s a case of mistaken identity: the movement you picked asks your hip flexors to do a lot of the work, and they gladly accept the job… then send you the bill.
Why Ab Exercises Can Trigger Hip Pain
Many popular “ab” moves are actually hip-flexion-heavy moves. When your legs lift toward your torso (or your torso curls toward your legs), your hip flexors kick in hard. Sit-ups are a classic example: they recruit the hip flexors and can increase loads on the lumbar spine, which is why many experts prefer curl-ups or plank variations for core training that’s easier on the body.
Meet the usual suspects: your hip flexors
Your hip flexors aren’t one musclethey’re a team. The big headline names include the iliopsoas (deep hip flexor) and rectus femoris (part of the quadriceps that also flexes the hip). They’re great at lifting your leg, stabilizing your pelvis, and helping you sprint, climb stairs, or kick a ball. But when you want your abs to do the heavy lifting in a core workout, hip flexors sometimes try to steal the spotlight.
The Most Common Causes of Hip Pain During Ab Exercises
1) Your hip flexors are “taking over” the movement
If your ab routine is heavy on straight-leg raises, flutter kicks, V-ups, or sit-ups, your hip flexors may be doing a huge chunk of the work. That can create:
- Front-of-hip soreness or pinching during or after the set
- Cramping near the upper thigh
- A feeling that you’re working your hips more than your abs (which… you might be)
In testing contexts, full sit-ups require extra hip flexor recruitment compared with curl-upsone reason curl-ups are often considered a safer, more “ab-focused” option than full sit-ups.
2) Tight or overactive hip flexors from lots of sitting
Hip flexors spend hours shortened when you sit. Over time, they can become “overactive,” and that can affect pelvis and low-back mechanics. Some corrective-exercise frameworks note that overactive hip flexors may contribute to an exaggerated low-back arch and an anteriorly tilted pelvisbasically a posture that makes it easier for the hip flexors to dominate and harder for the deep core and glutes to do their share.
Translation: You’re not doomedyour body just learned “chair mode,” and now it tries to use the same pattern on the gym floor.
3) Anterior pelvic tilt or poor pelvic control during leg-lift moves
Leg raises and leg-lowering exercises look simple until your pelvis starts tipping forward and your lower back arches. When that happens, your hip flexors often crank harder, and the front of the hip can feel like it’s being tugged. Anterior pelvic tilt is commonly linked with tight hip flexors and relatively weaker glutes/hamstrings/abs. When your pelvis is stuck “spilling forward,” your hip flexors get a mechanical advantage… and your hips may protest.
4) Weak glutes and undertrained posterior chain
Your hips like teamwork. If your glutes and hamstrings are underpowered, hip flexors can become the “default” stabilizersespecially during repetitive leg lifts. This doesn’t mean you need to turn every workout into a glute festival, but balancing your training helps your hips stop feeling like they’re doing unpaid overtime.
5) Hip flexor strain or tendinopathy (overuse irritation)
If you suddenly ramped up your ab workouts (hello, “30-day core challenge”), your hip flexors might be irritated from overuse. Hip flexor strains can cause pain, tightness/pulling in the hip, weakness, swelling, bruising, and discomfort with movement. Ab workouts that repeatedly lift or hold the legs up can be enough to aggravate an already cranky hip flexor.
Clue: It hurts more when you lift the knee, climb stairs, or walk fastand it’s not just “exercise burn.”
6) Femoroacetabular impingement (FAI): a “pinch” with deep hip flexion
Sometimes hip pain during ab exercises isn’t about muscles at allit’s about hip joint shape and mechanics. Femoroacetabular impingement (FAI), often called hip impingement, can cause pain and stiffnesscommonly felt in the groin area. People often notice it with movements involving turning, twisting, squatting, or deep hip flexion. If your ab routine includes tucked positions (like tight V-ups), aggressive leg raises, or moves that repeatedly jam the hip into flexion, impingement can flare.
Clue: Deep groin pain or a sharp “pinch,” sometimes with reduced range of motion. Some people also report popping/clicking sensations and pain after prolonged sitting or activity.
7) Hip labral irritation/tear: clicking, catching, or “something feels off”
The hip labrum is a ring of tissue that helps the hip socket stay stable and move smoothly. Labral issues can cause hip or groin pain, stiffness, and sensations like clicking, catching, or poppingespecially with bending, exercise, or sports. Ab exercises that repeatedly move the hip through flexion (especially under fatigue or with poor control) can aggravate symptoms if there’s already labral irritation.
Important: Many labral tears don’t cause symptoms, and not every click is a crisis. But if clicking/catching pairs with pain, stiffness, or worsening function, it’s worth getting checked.
8) Snapping hip syndrome: the “pop” that sometimes hurts
Snapping hip syndrome is exactly what it sounds like: a snapping or popping sensation in the front/groin, side, or back of the hip when you lift, lower, swing, or rotate the leg. It can be painless, but it can also come with tightness, swelling, weakness, and difficulty with daily movements. Ab exercises involving repeated leg lifts can trigger snapping in people who are prone to it.
Which Ab Exercises Are Most Likely to Cause Hip Pain?
Not all core moves are equal for your hips. Exercises most likely to trigger hip pain are those that demand a lot of hip flexion or long lever arms:
- Sit-ups (especially full sit-ups)
- Straight-leg raises (on the floor or hanging)
- Flutter kicks / scissor kicks
- V-ups and tight tuck holds
- Leg lowers (especially if your low back arches)
That doesn’t mean these moves are “bad.” It means they’re hip-flexor intensive. If your goal is abs, your hips might be doing too much of the job.
How to Tell If It’s “Normal” Effort vs. A Red Flag
Often normal (or at least fixable with form and programming)
- Dull muscular fatigue in the front of the hip that improves with rest
- Mild tightness that eases after warm-up and doesn’t linger
- Discomfort that improves when you bend your knees, shorten range, or switch exercises
More concerningconsider professional evaluation
- Sharp groin pain or pinching with hip flexion
- Clicking/catching/locking paired with pain or stiffness
- Pain that persists for weeks, worsens, or changes your daily movement
- Inability to bear weight, major swelling, fever, deformity, or severe pain after injury
What to Do About Hip Pain During Ab Work (Without Throwing Your Core Goals in the Trash)
1) Choose core exercises that don’t rely on hip flexion
If hip pain shows up during leg lifts, try shifting toward anti-extension and stability-based core work:
- Planks (front plank, side plank)
- Dead bug variations
- Bird dog
- Pallof press (if you have access to a band/cable)
Planks tend to recruit a more balanced set of muscles compared with sit-ups, and they avoid repetitive hip flexion.
2) Modify leg-based core exercises so hips stop hogging the load
If you love leg raises and don’t want to break up, you can still negotiate healthier terms:
- Bend your knees to shorten the lever arm (less hip flexor demand).
- Reduce range of motion and stay where you can keep pelvis control.
- Slow downspeed often turns “abs” into “momentum + hip flexors.”
3) Keep your ribcage “down” and avoid the low-back arch
When your low back arches off the floor, your pelvis tips forward and hip flexors tend to dominate. A practical fix is to shorten the range until you can maintain control. In dead bug work, for example, guidance often suggests reducing how far you extend your leg/arm if your back arches, or moving one limb at a time until you can stabilize.
4) Warm up like you mean it
Hip flexor strains and irritation are more likely when you jump into hard reps cold or pile on volume quickly. A simple warm-up can include:
- Light movement to raise temperature (walk, easy cycle, gentle dynamic mobility)
- Glute activation (bridges, mini-band walks if appropriate)
- Core bracing practice (short sets of dead bug or plank variations)
5) Address the “desk posture tax”
If you sit a lot, plan for hip flexor stiffness and anterior pelvic tilt tendencies. A balanced routine often includes hip flexor stretching, glute strengthening, and core stability worknot because you’re broken, but because modern life loves turning humans into folded lawn chairs.
When to Stop and Get Checked
Stop the painful movement and consider medical guidance if:
- Your hip pain follows a significant fall or injury, or you can’t bear weight.
- You have severe pain, sudden swelling, fever/chills, or obvious deformity.
- Pain and stiffness don’t improve over time, or symptoms worsen instead of settling.
- You have persistent groin pain with clicking/catching, especially with deep flexion/rotation.
Your core will still be there tomorrow. Your hips? Ideally also yes.
Conclusion: Your Abs Aren’t the VillainYour Exercise Choice Might Be
Hip pain during ab exercises usually comes down to one of two buckets: (1) your hip flexors are doing too much because the exercise demands hip flexion or your pelvis isn’t staying stable, or (2) the hip joint itself doesn’t love deep flexion/rotation due to issues like impingement, labral irritation, or snapping hip mechanics.
The good news: most people can make major improvements by adjusting exercise selection, shortening range, bending knees, slowing tempo, and building a more balanced “core + hips” system. If pain is sharp, persistent, or comes with clicking/catching and function changes, getting evaluated is the smart movebecause “no pain, no gain” was never meant to apply to your hip socket.
Real-World Experiences: What Hip Pain During Ab Work Feels Like (and What People Learn)
Let’s talk about the part nobody brags about on social media: the weird, specific ways hip pain shows up during “ab day.” If you’ve ever felt personally attacked by a set of flutter kicks, you’re in good company.
The “My Abs Feel Fine, But My Hips Are On Fire” Experience
A lot of people report that their abs barely feel the exercisebut the front of the hips lights up immediately. This is especially common with straight-leg raises, V-ups, and long sets of leg lowers. The typical pattern is: the legs start to lift, the hip flexors jump in like eager interns, and the abs never get the leadership role. People often describe it as a burning or tight pulling right where the thigh meets the pelvis. The “aha” moment is realizing the exercise is basically asking, “How good are you at hip flexion?” not “How strong are your abs?” Once they switch to planks, dead bug variations, or bent-knee reverse crunch patterns, they’re shocked by how much more their abs show up to work.
The “It Only Hurts When My Low Back Pops Up” Experience
Another common report: the hips don’t hurt at first, but as the set goes on, the lower back begins to arch off the floor. Then the hip discomfort starts. People often say it feels like a pinch or strain in the front of the hip, and they can’t figure out why it happens “randomly.” What’s usually happening is fatiguecore stabilizers fade, the pelvis tips forward, and the hip flexors have to do more. Many people fix this without changing their whole program by doing two simple things: (1) shortening the range of motion (only lowering the legs as far as they can while keeping control), and (2) bending the knees so the lever arm isn’t so long. The result feels less impressive, but it trains the right systemand their hips stop filing complaints.
The “Sitting All Day, Then Leg Raises… Instant Regret” Experience
If someone sits for school or work most of the day, then tries to “make up for it” with intense ab work at night, hip flexors can be touchy. People describe feeling tight and short in the front of the hips even before training begins. Then they go straight into high-rep sit-ups or hanging knee raises, and the hips feel cranky for the rest of the week. The pattern that tends to help is boring-but-effective: a short warm-up, a few mobility moves, and core exercises that don’t demand constant hip flexion. Over time, adding glute bridges, hip hinges, and more balanced lower-body work can make ab day feel less like “hip flexor day in disguise.”
The “Deep Pinch in the Groin” Experience
Some people notice a distinct pinch deep in the front of the hip or groin, especially in tightly tucked positions (like toes-to-bar progressions, deep V-ups, or aggressive knee-to-chest variations). They may also notice stiffness after sitting or a sense that the hip “doesn’t like” certain angles. This is where people often learn the value of respecting symptoms: switching to non-provocative core work, avoiding deep painful ranges, and getting a professional opinion if it persists. The big takeaway is that pain isn’t a puzzle you must solve by doing more reps; sometimes it’s a signal to adjust the movement menu.
The “Clicking or Snapping” Experience
Clicking can be harmless, but when it’s paired with pain or weakness, people describe feeling uneasylike the hip is “catching.” Others notice a snapping sensation during leg-lowering or when they swing the leg up in certain core movements. The most useful lesson people report is learning to control speed and range: slower reps, smaller ranges, and better stabilization often reduce the snap. If it doesn’t, that’s when evaluation and a more tailored plan can help.
If any of these experiences sound familiar, don’t panicand don’t “push through” sharp pain. The most consistent wins come from smarter exercise selection, better pelvic control, and treating the hip as part of the core system (because it is). Your abs can get stronger without your hips feeling like they’re paying the entire rent.