A recent study looking for a link between antibiotics and cancer risk uncovers a complex relationship. The researchers conclude that there is an association between antibiotic use and an increase in colon cancer risk, but a decrease in rectal cancer risk.
With the advent of antibiotic resistance, doctors are more conscious than ever before of limiting these drugs. However, the use of antibiotics continues to grow globally. From 2000–2010, consumption increased by 35% to 70 billion doses each year. That equates to 10 doses for each human on earth. These staggering figures are the fuel that drives researchers to understand the impact of antibiotics on human health better.
Over recent years, scientists have begun to appreciate the significant role that gut bacteria play in maintaining a healthy body. Likewise, because antibiotics kill gut bacteria, they have the potential to make a lasting impact on human health.
In short, if antibiotics kill off a colony of “good” bacteria, it leaves a niche for “bad,” or pathogenic bacteria to colonize. These pathogenic bacteria include ones that can be carcinogenic.
