Struggling to take another step while traveling may be more than fatigue. Lee Chih-yao, an orthopedic physician at Taipei City Hospital Zhongxing Branch, said prolonged walking may trigger acute bunion pain. Redness or swelling at the base of the big toe and calluses on the sole are warning signs.

A bunion may cause only mild discomfort during daily activities, but increased walking and foot swelling while traveling can make the protruding joint repeatedly rub against footwear. This may lead to acute bursitis and pain severe enough to disrupt the trip.

Bunions do not affect only women who wear high heels or pointed shoes. Clinical observations show about 70% of patients have a family predisposition. Flat feet and loose foot ligaments also increase the risk, and men may develop symptoms despite wearing wide athletic shoes.

Mild cases may be managed with wide shoes offering arch support, five-toe socks, toe spacers or corrective aids to reduce pressure. If pain remains after several months and affects daily walking, these adjustments may no longer be sufficient.

A prominent big-toe joint, repeated redness and swelling, sole calluses or overlapping toes suggest abnormal foot loading. People with an obvious deformity should seek an orthopedic assessment and discuss whether corrective surgery is needed.