Bakin metatarsal shine baka na tsayin daka wanda kasusuwan metatarsal guda biyar suka yi a kafa. Yana da nisa tsakanin ƙwallon ƙafa da diddige, kuma yana taimakawa wajen rarraba nauyin jiki yayin tsayawa, tafiya, da gudu. Tsayi da siffar baka na metatarsal na iya bambanta tsakanin daidaikun mutane, kuma abubuwa kamar shekaru, kwayoyin halitta, da raunin ƙafafu na iya shafar su. Taimakon da ya dace na baka na metatarsal yana da mahimmanci don kiyaye aikin ƙafar lafiya da rage haɗarin matsalolin ƙafa kamar fasciitis na plantar da lebur ƙafa.