Ciwon ciki, wanda kuma aka sani da ciwon ciki, alama ce ta rashin jin daɗi a ko'ina cikin yankin ciki. Za a iya zama a cikin ɗaya daga cikin huɗun huɗun ko ciki ko kuma ya faru a fili. Wasu alamomi kamar tashin zuciya, amai, gudawa, ko maƙarƙashiya na iya kasancewa. Ana iya raba shi zuwa jin zafi na fara farat ɗaya (m) da kuma jin zafi na dogon lokaci (na kullum). Abubuwan da aka fi sani sun haɗa da gastroenteritis da ciwon hanji mai ban haushi. Kimanin kashi 15% na mutane suna da yanayin da ya fi muni kamar appendicitis, cututtukan gallbladder, rugujewar aortic aneurysm na ciki, perforated peptic ulcer, pancreatitis, torsion ovarian, volvulus, ciwon sukari ketoacidosis, diverticulitis, ischemic hanji, ko ectopic ciki. A jarirai necrotizing enterocolitis, vulvulus, da intussuception ya kamata a yi la'akari. A kashi uku na shari'o'in ba a san ainihin musabbabin hakan ba. Bincike na iya dogara ne akan tarihin bayyanar cututtuka, bincike, aikin jini, da kuma hoton likita. Ana iya yin ECG don kawar da bugun zuciya.