Dr Walter Watson, aged 100 years, from Augusta, Georgia, is apparently the world's oldest doctor.
Watson a.k.a 'Papa Doc' has delivered 18,000 babies during his career.
Despite the old age, he suffers only from only minor arthritis and sight loss.
"I stopped delivering babies when my eyesight got bad, but I do rounds at the nursing stations and operating rooms," the Sun quoted him, as saying.
He added: "I remember the births with complications more than the perfect ones. Once you've done several thousand they start blending together."