Why Does My Second Toe Curve? Common Causes and Solutions

A second toe that gradually bends or drifts out of alignment is almost always the result of a muscle or ligament imbalance at the toe’s base joint, often involving a structure called the plantar plate. The second toe is uniquely vulnerable because of its anatomy and its position next to the big toe, and the curving can take several distinct forms depending on which tissues are affected. The good news is that the problem is well understood, and solutions range from simple shoe changes and taping to surgical correction when things progress too far.

What Makes the Second Toe So Vulnerable

Your second toe sits between the big toe and the middle toes, and it often bears a disproportionate share of your body weight during walking. Each step ends with a push-off phase where the toes bend upward against the ground, and the second toe takes the brunt of that force. At the base of the toe, a thick piece of fibrous tissue called the plantar plate anchors the underside of the joint. This plate has a strong attachment at the toe end but a relatively thin, weaker attachment closer to the foot, which makes it prone to stretching or tearing over time as those push-off forces accumulate.¹

People whose second metatarsal bone (the long bone behind the second toe) is relatively long face even greater risk. A longer second metatarsal means more pressure concentrated under that toe during walking and a greater tendency for the toe to drift toward the big toe. Cadaver studies using robotic gait simulation have confirmed that as second metatarsal length increases, peak pressure under the second toe rises and the toe angles more toward the midline of the foot.² If you have ever been told you have a “Morton’s toe” or noticed that your second toe sticks out past your big toe, that longer metatarsal may be contributing to the curve you are seeing.

The Different Ways a Second Toe Can Curve

Not every curved second toe looks the same, and the shape of the bend tells you something about which joints and tissues are involved. Lesser toe deformities are caused by an imbalance between the small muscles inside the foot and the longer muscles that run down from the leg, and different imbalance patterns produce different shapes.³

Hammer toe: The middle joint of the toe bends downward while the base joint stays relatively normal. This is the most common type and often comes with a corn on top of the bent joint from rubbing against the shoe.
Claw toe: Both the middle and end joints curl downward while the base joint hyperextends upward, giving the toe a claw-like appearance. Claw toes are more often associated with neurological conditions or systemic disease.
Mallet toe: Only the joint nearest the tip of the toe bends downward, leaving the rest of the toe relatively straight. These tend to cause problems at the very tip of the toe where it presses into the ground or the shoe.
Crossover toe: The toe drifts sideways toward (and eventually over) the big toe, often rising up on top of it. This happens when the plantar plate and surrounding ligaments deteriorate on one side of the joint.

Crossover toe deserves special attention because it is frequently misunderstood. Early on, the second toe drifts inward and can look like a mild bunion-related problem, but the pathology is at the second toe’s own joint. Over time, the toe drifts upward and literally crosses over the big toe, making shoe fitting painful.⁴ When the plantar plate weakens and the joint starts to ride upward, a small muscle called the lumbrical gets trapped on one side of the joint by a ligament and actually begins pulling the toe sideways, making the drift worse.⁵

Common Everyday Causes

The biggest modifiable risk factor is footwear. Shoes with a narrow toe box push the toes together and force the second toe to bend or overlap its neighbors. High heels shift your weight forward onto the ball of the foot, intensifying the push-off forces that stress the plantar plate. Research measuring in-shoe pressure has found that both flat shoes (which offer little support) and high heels can create concentrated pressure loads on specific parts of the foot.⁶ Running shoes with a wider toe box and some cushioning tend to distribute pressure more evenly, which is worth knowing if you are trying to slow down a toe that is starting to drift.

Bunions on the big toe also play a role, and this connection catches people off guard. When the big toe angles inward, it can physically push against the second toe, crowding it and forcing it upward or sideways. The second toe, already under more mechanical stress than its neighbors, is the first to give way. Many people who develop crossover toe or hammertoe of the second toe also have some degree of bunion on the same foot.³

Repetitive activity matters too. Runners, dancers, and anyone who spends long hours on their feet put cumulative stress on the plantar plate. Over months and years, the plate gradually stretches, and the toe begins to float upward at the base joint even if the person has never worn tight shoes. This is a wear-and-tear process, not an acute injury, which is why most people cannot point to a single moment when the toe “went wrong.”

When a Curved Toe Points to Something Systemic

Sometimes a curving second toe is not just a mechanical issue. Diabetes with peripheral neuropathy can cause significant wasting of the small muscles inside the foot. MRI studies of people with diabetic neuropathy have found dramatic losses in intrinsic foot muscle tissue, with muscle making up only about 8% of foot cross-sectional area in affected individuals compared with roughly 31% in people without diabetes.⁷ When those stabilizing muscles shrink, the balance of forces across the toe joints shifts and the toes can claw or curl.

The relationship between muscle wasting and toe deformity in diabetes is not as clean-cut as older textbooks suggest, though. A follow-up study found that muscle atrophy and muscle imbalance did not reliably distinguish between neuropathic patients who developed claw toes and those who did not, suggesting that other factors like joint anatomy and tissue stiffness also contribute.⁸ If you have diabetes and notice toe changes, it is worth getting a foot exam rather than assuming the deformity is inevitable.

Rheumatoid arthritis is another systemic driver. Chronic inflammation attacks the joint lining and gradually destroys the supporting structures around the toe joints. The second toe’s metatarsophalangeal joint is one of the earliest and most frequently affected joints in the foot, and toe drift or dislocation can be one of the first visible signs of the disease. Neuromuscular conditions like Charcot-Marie-Tooth disease can also cause progressive toe curling as nerve damage leads to muscle imbalance throughout the foot.

Congenital Curly Toes in Children

If you have noticed a curved toe on your child, the story may be different from adult-onset deformity. Congenital curly toe is the most common abnormal toe deformity present from birth, affecting roughly 2 to 3% of the population. It involves a combination of flexion and inward rotation at the small joints of the toe, and it appears most often in the third, fourth, and fifth toes, though the second toe can be involved. The cause is not fully established, but the leading theory points to shortening of the flexor tendons, possibly related to fetal positioning in the womb.⁹

The reassuring part for parents is that many congenital curly toes improve on their own as the child grows. Taping the toe straight is often recommended as a first-line approach, and observation alone resolves the problem in a sizable proportion of cases. Surgery is reserved for children whose toes remain symptomatic after conservative measures have been given time to work, and the procedure is typically a simple release of the tight flexor tendon.

Non-Surgical Ways to Manage a Curving Toe

For most adults who catch the problem early, the first line of treatment involves offloading the stressed joint and supporting the toe in a better position. Here is what tends to help:

Wider shoes: A shoe with a roomy toe box gives the toe space to lie flat rather than being squeezed upward. Look for shoes where the widest part of the shoe matches the widest part of your foot.
Toe taping or splinting: Buddy-taping the second toe to the third can prevent further drift. Over-the-counter gel toe separators placed between the first and second toes can relieve pressure from a neighboring bunion.
Metatarsal pads: A small adhesive pad placed just behind the ball of the foot can redistribute weight away from the stressed metatarsal head, reducing the force that drives the plantar plate damage.
Toe-strengthening exercises: Picking up marbles or a towel with your toes, or simply pressing your toes into the ground and holding for several seconds, can help maintain the intrinsic foot muscles that stabilize the joint.

Those intrinsic muscles are genuinely important. Research blocking the short toe flexor muscles during walking found that foot power production dropped significantly, from about 5 joules per stride to about 3 joules in walking, showing how much work those small muscles do in normal gait.¹⁰ Keeping them strong gives the joint a better chance of staying stable.

If the toe is still flexible, meaning you can manually straighten it, conservative measures have a reasonable chance of controlling the problem. Once the toe becomes rigid and fixed in its bent or crossed position, shoes and pads can reduce pain and pressure, but they will not straighten the toe. That is the point where surgical options enter the conversation.

Diagnosing Plantar Plate Tears

If your doctor suspects the plantar plate is torn rather than just stretched, MRI is the standard imaging tool. Certain findings on MRI are especially reliable. The presence of scar-like tissue around the joint capsule (pericapsular fibrosis) was found to be about 91% sensitive and 91% specific for diagnosing plantar plate tears when compared against what was found during surgery.¹¹ A simple clinical test your doctor can do in the office is the “drawer test,” where the toe is gently pushed upward at the base joint. Excessive upward motion compared to the neighboring toes suggests the plantar plate has lost integrity.

Not everyone with a curving second toe needs imaging. If the toe is mildly bent, flexible, and not painful, a physical exam and a conversation about shoes may be all that is needed. MRI becomes more useful when surgery is being considered, because knowing the size and location of a tear helps the surgeon plan the best repair approach.

Surgical Options When Conservative Care Falls Short

Surgery for a curved or crossed-over second toe has evolved considerably. The specific combination of procedures depends on the deformity and its underlying cause, but a few approaches come up repeatedly in the literature.

Flexor tendon transfer is one of the most established techniques. The surgeon detaches the tendon that curls the toe downward and re-routes it to the top of the toe, converting it from a deforming force into a stabilizing one. A large case series performing this procedure alongside joint fusion and other corrections on more than 300 toes reported a low complication rate, with the most common complaint being a toe that did not grip the ground well afterward, occurring in about 6% of cases.¹² This tendon transfer approach is widely regarded as one of the most consistent surgical options for chronic plantar plate tears that have led to joint instability.¹³

Direct repair of the plantar plate is another viable route. Lab studies have shown that stitching the torn plate back together restores joint stability to levels comparable to the intact state, performing just as well as tendon transfer in biomechanical testing.¹⁴ The advantage of direct repair is that it addresses the actual damaged structure rather than using a workaround, though it requires the remaining tissue to be healthy enough to hold sutures.

For crossover toe specifically, surgeons often combine plantar plate stabilization with release of the structures pulling the toe sideways. This can involve releasing the lumbrical muscle and the tight ligaments on the inner side of the joint, sometimes using arthroscopic (small-camera) techniques to minimize tissue disruption.¹⁵

When the metatarsal bone itself is too long or positioned in a way that overloads the joint, a Weil osteotomy may be added. This involves shortening the metatarsal by cutting and sliding the bone back a few millimeters. A study of 25 feet treated with this approach for overriding second toes found that the average functional score improved dramatically, from about 46 out of 100 before surgery to about 94 afterward.¹⁶

The Floating Toe Trade-Off

One outcome of surgery that surprises many patients is “floating toe,” where the corrected toe sits slightly elevated and does not touch the ground when standing. This is more common than most people expect. One study found a floating toe rate of about 57% after Weil osteotomy, regardless of the specific surgical technique used.¹⁷ The reassuring finding from the same study was that the presence of a floating toe did not meaningfully affect patient satisfaction, functional scores, or grip strength. Most people with a floating toe after surgery report they are happy with the result.

That said, the choice of surgical technique can influence the floating toe rate. A comparison of minimally invasive osteotomy versus the traditional open Weil osteotomy found that the minimally invasive group had a floating toe rate of 25% compared with about 57% in the open group, and the minimally invasive group also scored better on functional measures and patient satisfaction.¹⁸ If you are considering surgery and a Weil osteotomy is part of the plan, it is worth asking your surgeon about minimally invasive approaches and their experience with them.

When to Actually Worry

A second toe that has always been slightly longer or mildly curved is usually a cosmetic variant, not a medical problem. The toes to pay attention to are the ones that are changing. A toe that used to lie flat and is now drifting upward, sideways, or curling under is a toe with an active process underway. Pain under the ball of the foot, especially pain that feels like stepping on a marble or a rolled-up sock, is a classic early sign of plantar plate stress. Swelling at the base of the second toe, difficulty wearing shoes that used to fit, or a toe that visibly crosses over the big toe are all reasons to get an evaluation sooner rather than later.

Timing matters because the deformity tends to be progressive. A flexible hammertoe that you can still straighten with your hand is much easier to manage conservatively than a rigid one that has been fixed in position for years. Similarly, a second toe that is starting to drift medially can often be controlled with taping and shoe changes, but once it has crossed over the big toe, the soft-tissue damage is usually extensive enough to require surgical correction. Early intervention, even if it is just switching to roomier shoes and using a metatarsal pad, can slow the progression and potentially keep you out of the operating room altogether.

Why the Second Toe and Not the Others

It is worth asking why the second toe takes the hit more often than the third, fourth, or fifth. Part of the answer is anatomical: the second metatarsal is often the longest in the foot and is the most rigidly fixed to the midfoot bones, meaning it cannot move out of the way when forces pile up the way the more mobile outer metatarsals can. The second toe is also right next to the big toe, which accounts for a huge share of the foot’s push-off force. Any dysfunction of the big toe, whether from a bunion, arthritis, or stiffness, shifts mechanical load laterally onto the second ray.

The intrinsic muscles of the foot play a measurable role in maintaining toe alignment during walking. When researchers blocked the short flexor muscles in healthy subjects, the toe joints became less stiff during push-off and the foot produced significantly less power, dropping from about 5 joules per stride to roughly 3 joules during walking.¹⁰ The second toe’s position at the center of this force-generating mechanism means that when the stabilizing muscles weaken, whether from aging, disuse, neuropathy, or simply spending years in supportive shoes that do the muscles’ work for them, the second toe is the first domino to fall.

This also explains why the problem tends to show up in middle age and beyond. Decades of walking add up. The plantar plate, already architecturally weaker on its proximal end, gradually thins. The intrinsic muscles slowly lose bulk. The toe starts to ride up at the base joint, and the person begins noticing that the second toe does not lie flat anymore. It is a cumulative process, and understanding that cumulative nature is what makes early intervention so effective: you do not need to reverse years of wear and tear, you just need to reduce the forces that are continuing to drive the deformity forward.