Anatom3DThird metatarsal bone
Os metatarsi III · Třetí kost nártní
Skeleton
Looks like
The long bone behind the third toe in the midfoot.
What it does
Shares load across the forefoot.
Keeping it well
Stress fractures occur here too. Pain between the third and fourth heads with numb toes suggests a Morton neuroma.
Related conditions
- Acromegaly
- Buerger's disease (thromboangiitis obliterans)
- Bunion & foot deformity
- Chronic venous insufficiency
- Clubfoot (talipes equinovarus)
- Flat feet (pes planus)
- Fractures
- Fragility fracture
- Frailty & falls in older age
- Ganglion cyst
- Gout
- Hammer toe and claw toe
- Hyperparathyroidism
- Lymphatic filariasis (elephantiasis)
- Lymphoedema
- Morton's neuroma
- Osteogenesis imperfecta (brittle bone disease)
- Osteomalacia & rickets
- Osteomyelitis (bone infection)
- Osteoporosis
- Paget's disease of bone
- Restless legs syndrome
- Sarcoma
- Varicose veins
- Venomous snakebite
- Vitamin B1, C and other deficiencies
- Vitamin D deficiency