Well the simple answer is, almost certainly, especially if you have a positive family history and can see your older relatives with a bigger bunion (unless they have had surgery of course!).
You may find the following information useful:
A bunion is most likely to develop when susceptible feet are repeatedly squeezed into narrow, pointed-toe footwear. The big toe pushes against the other toes, sometimes diving over or under them. As a result, the base of the big toe — the metatarsophalangeal (MTP) joint — juts or angles out from the foot. To judge how severe a bunion is, clinicians take an x-ray and measure angles between certain bones in the foot, in particular, the hallux valgus angle (HVA) — the angle between the first metatarsal and the big toe — and the angle formed by the first and second metatarsals, called the intermetatarsal angle (IMA). The upper limit of normal for the HVA is 15 degrees; for the IMA, 9 degrees.
Shoes with narrow toes can trigger a bunion, but they’re not the underlying cause. Bunions run in families, because foot type (shape and structure) is hereditary, and some types are more prone to bunions than others. Low arches, flat feet, and loose joints and tendons all increase the risk. The shape of the metatarsal head (the top of the first metatarsal bone) also makes a difference: if it’s too round, the joint is less stable and more likely to deform when squeezed into shoes with narrow toes.
High heels can exacerbate the problem because they tip the body’s weight forward, forcing the toes into the front of the shoe. This may help to explain why bunions are 10 times more common in women than in men.
People in occupations such as teaching and nursing, which involve a lot of standing and walking, are susceptible to bunions. So are ballet dancers, whose feet suffer severe repetitive stress. Women can develop bunions and other foot problems during pregnancy because hormonal changes loosen the ligaments and flatten the feet. Bunions are also associated with arthritis, which damages the cartilage within the joint.
You may be able to relieve pain and prevent bunions from progressing with conservative measures that take pressure off the MTP joint and improve foot mechanics.
The first step is to relieve the pressure by wearing the right kind of shoe. (It’s also important to maintain a normal weight.) Shoes should have a wide, flexible sole to support the foot and enough room in the toe box (the part surrounding the front of the foot) to accommodate the bunion. Some good choices are sandals, athletic shoes, and shoes made from soft leather. Shoes with a back should have a sturdy heel counter (the part surrounding the heel) to keep the heel of the foot snugly in place. You may be able to reshape narrow shoes with stretchers that make room in the toe box for the bunion. Keep heels low (no higher than an inch).
You can also protect the bunion with a moleskin or gel-filled pad, available at drugstores. (Make sure your shoes have enough space to accommodate it.) A clinician may recommend semisoft orthoses (shoe inserts) to help position the foot correctly as it strikes the ground. You can also wear a splint at night to hold the toe straight and ease discomfort.
When the bunion is irritated and painful, warm soaks, ice packs, and nonsteroidal anti-inflammatory drugs such as aspirin or ibuprofen may help. Whirlpool, ultrasound, and massage may also provide some relief. Cortisone injections can relieve pain temporarily by reducing inflammation, but they have many side effects, especially when used often and at high doses.