Which of the following is NOT a common location for foot ulcers?

The second metatarsal is often less commonly associated with foot ulcers compared to the other choices. Foot ulcers typically occur at pressures points, and the first metatarsal head, the fifth metatarsal, and the big toe (hallux) are more frequently subjected to pressure and shear forces. These areas are particularly vulnerable in patients with conditions influencing blood flow or sensation, such as diabetes.

Understanding the biomechanics and pressure distribution in the foot can provide greater insight into why some locations are more prone to ulceration. The first and fifth metatarsal heads have prominent anatomical structures that can lead to high-pressure areas during weight-bearing activities, making ulcers more likely in these regions. Additionally, the big toe plays a crucial role in the push-off phase of gait, which increases the risk of ulcer formation due to increased load and pressure during ambulation.