Retrocalcaneal bursitis
Retroachilles bursitis
Septic bursitis
Septic arthritis
Calcaneus fracture
Friction blister
Foot and toe fractures
Subtalar dislocation
Metatarsophalangeal joint sprain (turf toe)
Acute arterial ischemia<unk> 
Diabetic foot infection
Peripheral artery disease
Plantar fasciitis
Trench foot
Ingrown toenail
Paronychia
Tinea pedis
Morton's neuroma
Diabetic neuropathy
Achilles tendon rupture<unk> 
Cellulitis
Compartment syndrome
Deep venous thrombosis (DVT)
Gastrocnemius strain
Ruptured popliteal cyst (Bakers cyst)
Superficial thrombophlebitis
Calcaneal bursitis
Retrocalcaneal bursitis
Olecranon bursitis 
Retroachilles bursitis
Hip bursitis
Septic bursitis
Prepatellar bursitis 
Septic arthritis