Foot health risks and preventive measures for sandal use

In late July, clinicians warned that prolonged walking in tight sandals can cause mechanical foot problems such as anterior tibial tendonitis, fatigue fractures of the metatarsals, and swelling‑related pressure pain. They advised adjustable straps, wider soles and rest to prevent worsening of these conditions.

A few days later, health experts broadened the scope, noting that improper sandal use also creates environments conducive to fungal infections and can trigger a cascade of musculoskeletal issues—including heel cracks, plantar fasciitis, Achilles tendon strain, Morton’s neuroma, metatarsalgia and even neck or jaw discomfort. They emphasized the need for supportive, breathable footwear, proper foot hygiene, and daily foot inspections for diabetic patients.

By mid-August, podiatrists specifically cautioned against flip-flops for extended urban walking, noting that the lack of rear support forces toes to constantly contract, causing muscle tension. Experts highlighted that heat-induced vasodilation and edema can cause feet to swell significantly, making morning-fitted sandals painfully tight by afternoon.

To mitigate these risks, the Union Française pour la Santé du Pied and other specialists recommend footwear with stability, shock absorption, and at least one ankle strap to secure the heel. Ideal summer sandals should feature adjustable straps, such as Velcro, to accommodate swelling, and a thick, flexible sole with a moderate heel of 2 to 3 centimeters. Professionals suggest trying on new footwear in the late afternoon when feet are at their largest to ensure an optimal fit.