Dr. Andrew B Shreiner MD

Constipation is a very common condition that can affect everyone at some point in their lives. However, women are more commonly affected than men and the frequency of constipation cases increases with age. Constipation may be a frequent problem for some people, which may require medical...

Liver cancer happens when the liver's normal cells change in behavior and appearance. As a result, the abnormal liver cells divide and grow uncontrollably. Liver cancer is also referred to as "hepatic cancer", which can either be primary or secondary.  The liver is a large organ that is located...

Ulcerative colitis is one of those medical conditions a person must learn to live with for the rest of their life. It has no cure, and ignoring the symptoms can be potentially deadly. After the initial bout with ulcerative colitis, and with proper treatment, the individual is said to be in remission...

A recent study, published in the journal Science, suggests that an individual’s past history of minor bacterial infections, as in the case of mild food poisoning, could add up a chain of events with age and lead to chronic inflammation and potentially life-threatening colitis (inflammation of the...

Most often people have extra intestinal symptoms, such as migraine, peripheral neuropathy, joint pains, seizures, short stature, pubertal delay, and infertility. These presentations are not commonly tested for celiac disease, therefore, majority remains undiagnosed. ...

The symptoms accompanying drug withdrawal can be psychological or physical, changing your thoughts, feelings, and actions. For instance, drugs like cocaine and heroin trigger strong physical dependence. For other chemical substances, dependencies are more likely to cause psychological problems....