Dr DELBANCO: Mr K, a 65-year-old engineer and married father of 6, has had a moderate-sized hernia for many years and is trying to decide whether to have it repaired. Recently retired from his principal job but still working full-time, he is covered by Medicare and supplementary private insurance.He lives in a suburb of Boston, Mass, and for several years has been cared for by Dr M, a general internist practicing in a primary care unit at the Beth Israel Deaconess Medical Center.Mr K was born with a left-sided hernia. He recalls having episodes of pain as a young child and that he and his family attempted periodically to reduce the hernia. When he was 8 years old, the hernia was repaired. He has had no trouble on that side since. In 1961, he was first told of a hernia on the right side during a routine military physical examination. A surgeon suggested he have it repaired, but since it did not bother him, he did nothing about it. About 2 years ago, when he awoke one morning, he noted a large protuberance in the right inguinal area. He recalls no inciting incident. Since then, the hernia has continued to be large, but easily reducible. After extended periods of sitting, it bothers him "mildly," but he denies pain with cough or defecation.His maternal grandmother was troubled by a hernia, and his eldest son was born with an inguinal hernia. He is concerned that, as he ages, the hernia may prove more of a problem. He is active, particularly enjoying scuba diving, which takes him to depths of more than 100 feet. He has several friends who have undergone herniorrhaphy and has had conflicting advice about whether to proceed with surgery, including counsel from several health professionals in his family.Mr has a long history of mild hypertension, for which he takes 240 mg of diltiazem daily. He has had erectile dysfunction for the past 10 years; evaluation has revealed no endocrine or psychological cause. He has well-documented sleep apnea, mild narcolepsy, and, in more recent years, episodes of sleep paraly¬ sis. Continuous positive airway pressure treatment at night has been effective. He stopped smoking at the age of 30 years, uses alcohol once or twice a week, and is mildly overweight.On physical examination, he appears well and looks younger than his stated age, with a normal examination except for a large, easily reducible, right inguinal hernia. MR K: HIS PERCEPTIONS AND UNDERSTANDING Mr K: I was born with a hernia on the left side. Before I was 8 years old, it would get caught and it would expand and become very painful. Then I'd have to lie down, and my parents would bring ice and things to try to get it down in size again. I knew that I had to be very careful that it didn't get caught and not go back down. When I was 8, they decided it was time to operate on it. I knew that I had a small hernia on the right side when I was about 30 years old. But it never gave me any problems until about 2 years ago, when suddenly it became large and it opened up and got to the state that it is now. The only time I have discom...