Patients with pain in the forefoot of the left foot should consider the following conditions: 1. Plantar fasciitis: The starting point of the plantar fascia is in the heel bone, and the termination point is at the base of the metatarsal bone, which is close to the termination point of the plantar fascia at the forefoot. If you do more sports or weight-bearing activities, such as going up and down stairs, climbing, or carrying heavy objects or walking with heavy objects, it may cause an increase in the load on the plantar fascia, which may lead to plantar fasciitis and therefore pain in the forefoot or plantar heart. 2. bunions: When a bunion develops progressively, the bunions will push the 2nd and 3rd toes upwards, forming a sheep’s foot deformity. This time the negative focus of the foot will change, shifting from the original first metatarsal to the 2nd-3rd metatarsal, which will cause inflammation of the soft tissue below the 2nd-3rd metatarsal, manifesting as pain in the front of the foot.