4 doctors weighed in:
How does alcohol raise the risk of cancer?
4 doctors weighed in

Dr. Barry Rosen
Surgery
2 doctors agree
In brief: Unknown
The exact mechanism by which alcohol increases the risk of cancer is unknown, but this risk is well-established for cancers of the head and neck, breast, liver, esophagus, and colon.
There are probably many different causes including a local irritant effect, the effect on how other drugs are metabolized by the liver, and the effect of metabolites of alcohol that may be affected by gut bacteria.

In brief: Unknown
The exact mechanism by which alcohol increases the risk of cancer is unknown, but this risk is well-established for cancers of the head and neck, breast, liver, esophagus, and colon.
There are probably many different causes including a local irritant effect, the effect on how other drugs are metabolized by the liver, and the effect of metabolites of alcohol that may be affected by gut bacteria.
Dr. Barry Rosen
Dr. Barry Rosen
Thank
Dr. Alan Wartenberg
Addiction Medicine
In brief: Nobody knows really
There are a lot of theories, the main one is that alcohol is known to induce enzymes in the liver that metabolize other substances, including alcohol itself.
Many substances we take in through food or even water may be metabolized into cancer-causing chemicals (like the good black stuff on barbecued skin), and alcohol causes us to make more of these. It is also a chronic irritant to tissue.

In brief: Nobody knows really
There are a lot of theories, the main one is that alcohol is known to induce enzymes in the liver that metabolize other substances, including alcohol itself.
Many substances we take in through food or even water may be metabolized into cancer-causing chemicals (like the good black stuff on barbecued skin), and alcohol causes us to make more of these. It is also a chronic irritant to tissue.
Dr. Alan Wartenberg
Dr. Alan Wartenberg
Thank
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