Incisional and Umbilical Hernia

A 52-year-old man presents with a painless bulge in the midline of his abdomen 6 months after an emergency laparotomy for perforated peptic ulcer. The bulge is soft, non-tender, and reduces on lying flat. On examination, a 4 cm defect is palpable in the linea alba. He has a BMI of 32 kg/m², smokes 20 cigarettes daily, and has poorly controlled diabetes (HbA1c 9.2%). He reports chronic cough due to COPD. What is the single most important modifiable risk factor that should be addressed preoperatively to reduce recurrence after hernia repair?

A 3-year-old girl is brought by her mother with a visible bulge around the umbilicus that has been present since birth. The swelling increases in size when the child cries or strains. On examination, the defect is 2 cm in diameter, soft, and easily reducible. The skin over the defect is intact with no signs of inflammation. The mother is anxious about cosmetic appearance and requests immediate surgical repair. What is the most appropriate counsel regarding management?

A 52-year-old man presents with a painless bulge in the midline of his abdomen 8 months after an emergency laparotomy for perforated peptic ulcer. On examination, there is a 6 cm × 5 cm soft, reducible swelling along the midline incision. The patient is otherwise healthy with no respiratory symptoms. He is keen for early surgical repair. What is the most appropriate management at this stage?

Which layer of the abdominal wall is most commonly involved in the formation of an incisional hernia?

What is the most common location of an umbilical hernia defect in relation to the linea alba?