Diagnosing a bunion is generally quite a straightforward process.
A bunion can be diagnosed by just looking at the affected foot, as there will be a visible lump present. Your doctor will ask you to move your toe and foot to check whether your bunion is impeding your movement. Sometimes it may be necessary to take an x-ray of the foot to determine the severity of the bunion.
Your doctor may also choose to carry out a blood test if they suspect that arthritis may be the cause of your bunion.