What a bunion really is, how it is measured, and which treatments genuinely help, from better-fitting shoes to surgical correction.
Hallux valgus is the medical name for a bunion. The big toe (the hallux) angles toward the second toe while the first metatarsal bone drifts toward the inside of the foot, so the head of that bone pushes out as the familiar bump at the base of the big toe. It is a change in the alignment of the joint, not a bone spur that grows.
The deformity happens in three dimensions. As the toe drifts, the first metatarsal also rotates and the two small sesamoid bones beneath the joint shift out of their groove. That is why a bunion can change how the whole forefoot carries weight, not just how a shoe fits.
Bunions are common. A large review of nearly half a million people found hallux valgus in about 1 in 4 adults between 18 and 65, and in more than 1 in 3 people over 65. Women are affected roughly twice as often as men, and most people with bunions have a family history of them.
A bunion is progressive. It does not go away on its own and usually becomes more pronounced over time, although many never become painful enough to need surgery. Shoes, pads and orthotics can make a bunion comfortable; they do not move the bone back into place.
Severity is measured on standing X-rays using two angles: the hallux valgus angle (how far the big toe leans) and the intermetatarsal angle (the gap between the first and second metatarsals). Normal is under 15° and under 9°, respectively.
Big toe angle under 20°
Metatarsal angle under 11°
Big toe angle 20 to 40°
Metatarsal angle 11 to 16°
Big toe angle over 40°
Metatarsal angle over 16°
Grading systems differ between surgeons and studies, so treat these numbers as a guide. How much the bunion hurts and limits you matters more than the angle when choosing treatment.
These relieve pressure and pain. They are the right starting point for most bunions, even though none of them realigns the bone.
A wide, deep toe box, a soft upper over the bump, and a low heel.
Bunion pads to cushion the bump and orthotics to support the arch when flat feet are part of the picture.
Ice, anti-inflammatory medicine when it is safe for you, and easing off the activities that flare it.
Can ease pain while worn. They have not been shown to permanently straighten a bunion. Do bunion correctors work? →
Considered when a bunion stays painful and limits you despite good conservative care, not for appearance alone. The procedure depends on the size of the deformity, whether the foundation joint is unstable, and whether arthritis is present.
Cutting and realigning the first metatarsal, near the toe for smaller bunions or closer to the midfoot for larger ones.
Fusing the joint where the first metatarsal meets the midfoot (the Lapidus procedure) when it is unstable, or the big toe joint itself when arthritis is advanced.
Correction through very small incisions, which may mean less early swelling. Not every bunion is suited to it.
Corrects the unstable joint at the root of the bunion in all three dimensions. Learn about Lapiplasty →
Recovery generally takes about 3 to 6 months. Our bunion surgery recovery timeline walks through it week by week.
The big toe angles toward the second toe and a bump forms on the inside of the foot. Pain is usually over the bump, made worse by tight shoes.
The big toe joint wears and stiffens, with pain on top of the joint when pushing off or bending the toe upward. It is the most common arthritis in the foot, affecting about 1 in 40 people over 50.
The two can occur together, and they are treated differently, which is one reason an examination and X-rays come before any treatment plan. Hallux Rigidus (Big Toe Arthritis) →
Yes. Hallux valgus is the medical name for a bunion. Hallux is the big toe and valgus means angled away from the midline of the body. The big toe leans toward the second toe while the first metatarsal bone drifts toward the inside of the foot, so the head of that bone sticks out as the bump. It is a change in alignment, not a growing bone spur.
On standing X-rays, a big toe angle (hallux valgus angle) under 15 degrees and an angle between the first two metatarsals under 9 degrees are considered normal. A widely used grading calls a bunion mild below 20 degrees, moderate from 20 to 40 degrees, and severe above 40 degrees, with matching metatarsal angles of under 11, 11 to 16, and over 16 degrees. Grading systems vary between surgeons, and your symptoms matter more than the number when deciding on treatment.
Non-surgical care can make a bunion comfortable, but it cannot realign the bone. Wider shoes, pads, orthotics, anti-inflammatory medicine and ice relieve pressure and pain. Splints and braces have not been shown to permanently fix bunions. Bunions are progressive and usually get worse over time, although many never become painful enough to need an operation.
No. Toe spacers can ease pain, and a review of small studies found that orthoses with a toe separator reduced the big toe angle by a few degrees while they were worn. That change has not been shown to last once you stop wearing them, and spacers do not move the metatarsal bone back into place. They are a comfort measure, not a correction.
Hallux valgus is a bunion: the big toe angles toward the second toe and a bump forms on the inside of the foot. Hallux rigidus is arthritis of the big toe joint: the joint becomes stiff and sore, with pain on top of the joint when you push off or bend the toe upward. They can occur together, and they are treated differently.
Surgery is for a bunion that stays painful and limits your activity despite shoe changes and other conservative care. Appearance alone is not a reason to operate. There are many procedures, chosen by the size of the deformity, whether the foundation joint is unstable, and whether arthritis is present. Recovery takes about 3 to 6 months, and recurrence is the most common long-term complication.
Week by week: when you walk, when the boot comes off, when you drive, and why the swelling lasts far longer than anyone expects.
Bunion Surgery Recovery Timeline →What over-the-counter bunion correctors can do for comfort, and what no device can do for the bone.
Do Bunion Correctors Work? →A bunion changes how you load the foot, and those changes travel up through the knee, hip and back.
Bunions, Gait & Posture →The questions that separate a bunion you can live with from one worth correcting.
Do You Need Bunion Surgery? →General patient education. Your examination and individual treatment plan take priority.
Whether you need better shoes and padding or surgical correction, our podiatrists in Homewood, South Chicago Heights and Mokena will examine your foot, review your X-rays with you and explain every option.