Thirteen respondents did not volunteer any medical information, but 19 described sore throats, usually when they were learning to swallow, after performing too frequently, or when they were swallowing multiple or odd shaped swords. Lower chest pain, often lasting days, followed some performances and was usually treated by abstaining from practice. They rarely sought medical advice. Six suffered perforation of the pharynx or oesophagus. Three of these had surgery to the neck, one having a 1.5 cm laceration at the level of D2 and a pneumothorax, one a pinhole laceration at C6 and surgical emphysema, and the other having a pharyngeal tear. The perforations were treated conservatively in three patients, one of whom had a second perforation with aspiration of a neck abscess after further injury. Three others also had probable perforations, one of whom was told that a sword had "brushed" the heart, and one had pleurisy and another pericarditis after injury, suggesting extraoesophageal trauma. No one underwent thoracotomy, although one had a breadknife removed transabdominally. Sixteen mentioned intestinal bleeding, varying in quantity from melaena or finding some blood on a withdrawn sword to large haematemases necessitating transfusion. No members of the association had died from sword swallowing, but the cost of medical care was a concern with three members receiving medical bills around $23,000 - $70,000

Chaffee, who has a 26-inch waist, had several health problems as a newborn. One of them, pyloric stenosis, prevents food from emptying out of the stomach. The condition and ulcers he developed in his esophagus reduced his ability to gain weight.

Chaffee weighed 8 pounds when he was 4 months old, and 17 pounds when he reached kindergarten, his mother said. He was up to 85 pounds at age 14, but couldn't participate in some activities, including swimming.

"He sinks like a rock," his mother, Kelley Chaffee, told the Post Register.

Since turning 18 his goal has been to go over 100 pounds. He achieved that on a diet that included 5,000 calories a day in protein shakes.