A bunion is a thickened lump at the base of the big toe. It causes the big toe to move toward the smaller toes. It can make walking difficult.
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Bunions are caused by a deformity of the metatarsophalangeal (MTP) joint at the base of the big toe. This causes instability of the joint.
Deformity can be caused by:
- Flat feet, which transfer too much weight to the MTP joint
- Narrow-toed shoes and high heels
- Certain neuromuscular diseases, such as cerebral palsy or multiple sclerosis
- Marfan syndrome
- Activities that put undue stress on the feet, such as ballet
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.