A podiatrist can usually diagnose a bunion during a physical exam. An X-ray may provide further information about the joint, the angle of the toe, and if arthritis or gout are concerns to further investigate.
Wearing comfortable shoes with a wide toe-box at the first signs of a bunion appearing can decrease its growth and reduce any further complications. Resting the foot, using anti-inflammatory medications and icing the area may help. In some cases a cortisone shot at the base of the big toe may help. In cases when the bunion is causing severe pain, surgery may be performed to remove the bony bump and to realign the toe.
Ignoring a bunion will lead to increased pain and the chance of contracting bursitis, when the small fluid-filled sac next to the joint becomes inflamed. Depending on how severe your bunion is, your foot can become deformed and continue to cause chronic pain.