Hammertoe: the toe that slowly curls and will not lie flat
Last updated September 3, 2026.
Hammertoe is a deformity where a toe (usually the second) bends up at the middle joint and cannot lie flat, ending up curled like a hammer. Early on the toe is flexible and can be straightened by hand; left alone for years it stiffens into a fixed bend. The curled joint then rubs against shoe tops, growing painful corns and calluses, and the ball of the foot takes extra pressure.
What does it feel like?
The toe itself looks bent, and the trouble is mostly pressure: a painful corn on the top of the bent joint, soreness under the ball of the foot, and shoes that no longer fit over the raised joint. Flexible hammertoes ache after long days in narrow shoes; rigid ones hurt more constantly. The second toe is the classic victim, often alongside a bunion pushing it out of line.
Why does it happen?
An imbalance between the muscles that bend and straighten the toe, held too long in a bent position until the tendons shorten and the joint sets. The drivers: narrow, short, or high-heeled shoes cramping the toes; a long second toe; bunions crowding the toe; and conditions that weaken foot muscles, including diabetes with nerve damage, arthritis, and stroke. Family tendency plays a part. This is why the shoe conversation is treatment, not nagging.
What actually helps?
- Shoes first: a wide, deep toe box that clears the bent joint, low heels, and soft uppers; this alone removes most of the pain for flexible deformities.
- Padding and splints: corn pads, toe sleeves, and splints that hold the toe straighter while it is still flexible.
- Orthotics: insoles that offload the ball of the foot and correct the mechanics driving the imbalance.
- Exercises: towel scrunches and marble pick-ups with the toes keep the small muscles working while the deformity is flexible.
- Surgery: for fixed, painful deformities that fail the above: straightening the joint (tendon release, joint reshaping, or fusion) is a routine day-case procedure.
When is it an emergency?
Hammertoe itself never is, but two situations deserve prompt attention. Any foot sore, corn, or callus that breaks the skin in someone with diabetes needs fast podiatry care, because foot wounds in diabetes can escalate into ulcers and infections that threaten the toe or foot. And a toe that suddenly becomes hot, red, swollen, and very painful (rather than slowly bent) suggests gout or infection, not hammertoe. Pymander's escalation routing is built and tested specifically for this class of decision; see the safety architecture working paper.
What a Pymander AI doctor consult looks like
Illustrative example, not a real member's messages.
Common questions
Why is my toe curling in the first place?
Muscle imbalance held too long: the muscles that straighten the toe lose the tug-of-war against the ones bending it, usually because shoes keep the toe cramped in a bent position for years until the tendons shorten and the joint sets in the curl. Contributing factors include a naturally long second toe, a bunion shoving it sideways, arthritis, and nerve problems (diabetes above all) that weaken the small foot muscles. The family-history effect is real too: foot shape and the tendency travel together.
Can a hammertoe be fixed without surgery?
While the toe is still flexible (you can straighten it with your hand), yes, mostly: the deformity may not reverse, but the pain and progression usually respond to the non-surgical package: roomy shoes, corn padding, a toe splint, orthotics, and toe exercises. Once the joint is rigid and stuck bent, padding and shoe changes still help symptoms, but only surgery straightens the toe. The practical line: flexible and sore equals shoes and padding; rigid and disabling equals a surgical conversation.
What shoes should I actually buy?
The checklist that matters: a toe box wide and deep enough that the bent joint clears the top of the shoe (press down on the upper over the toe; you should feel space), a heel under about 2cm, soft or stretchable uppers, and enough length that the longest toe does not touch the end. Trainers and comfort brands meet this easily; fashion shoes mostly do not. A podiatrist can also stretch specific shoe spots over the corn. This sounds cosmetic and is actually the main treatment.
Is the corn on top of the toe the same problem?
Yes: the corn is the symptom, the hammertoe is the cause. The bent joint presses against the shoe, and the skin defends itself by thickening into a corn, which then becomes its own source of pain. Padding and shoe changes take the pressure off and the corn shrinks; a podiatrist can debride it painlessly for faster relief. Do not use medicated corn plasters on it if you have diabetes or poor circulation: the acid in them can burn through skin that heals poorly.
I have diabetes. Does that change anything?
Significantly. Diabetes weakens the small foot muscles through nerve damage, which both causes hammertoes and changes the stakes: a corn or callus that cracks the skin can turn into an ulcer that heals poorly and escalates fast. So the diabetic rules are stricter: daily foot checks, no self-treating corns with blades or acid plasters, well-fitted shoes always (never barefoot), and prompt podiatry for any skin break. Hammertoe care in diabetes is wound prevention, and it works.
What does hammertoe surgery involve?
For most people it is day-case surgery under local or general anaesthetic: the surgeon straightens the joint by releasing or rebalancing tendons, reshaping the joint surfaces, or fusing the middle joint straight (sometimes with a temporary pin sticking out of the toe for a few weeks). Walking in a stiff post-op shoe starts immediately or shortly after; swelling takes months to fully settle, and most people return to normal shoes in 6-12 weeks. Satisfaction rates are high for rigid painful deformities, which is the group surgery is for.