Generally speaking , the belly hurts the common reason to have the intestines convulsion , the roundworm disease , dysentery , the intestines telescope , the appendicitis and so on .
一般来说,肚子疼常见的原因有肠痉挛、蛔虫病、痢疾、肠套叠、阑尾炎等。
With river blindness , black flies spread larvae that when grown destroy eye tissue ; mosquitoes do the same for the worms that block the lymphatic system in elephantiasis ; hookworm , roundworm and whipworm are soil-born .