I’m 20, I practice fencing. My height is 192 cm, I usually fence against shorter opponents. They often manage to drive their smallsword into my belly. That’s why I’m curious: what would it be like to get wounded into the belly by a real smallsword? How lethal would it be? How painful? How would I react?
Beyond initial bleeding - extensive gastrointestinal issues, depending on where it hits. If it lacerates part of the intestine, it may leak feces into the abdominal cavity. It would require flushing and antibiotics to prevent going into sepsis from massive infection.
If it does enough damage, you could be looking at removing a portion of the intestines and possibly requiring a colostomy bag.
Abdominal wounds are no joke. The liver bleeds profusely if lacerated or punctured. All of the blood flow to the abdomen exits through the liver into the inferior vena cava.