Dr. David John Hagan MD

IntroductionCat scratch fever or cat scratch disease is a bacterial infection spread by cats. You can get the cat scratch fever from a scratch or bite of a cat that is infected with the bacterium called Bartonella henselae. Aside from the infected cat’s scratch, you can also acquire the infection...

What is encopresis?Encopresis is a disorder characterized by the involuntary leaking of poop due to chronic constipation. This disorder is usually observed in children 4 years old and above.In encopresis, the wall and the nerves of the bowel are stretched when poop is held on for a longer time. This...

Diarrhea is a condition characterized by loose or watery stools that occur more than three times a day. Typically, the condition lasts for about two to three days and then resolves on its own. The symptoms of diarrhea include watery stools, bloating, stomach cramps, gas, and nausea.Diarrhea can lead...

Croup in AdultsAlthough croup is commonly observed in children who are 6 months to 3 years old, it is also possible for adults to get the infection in rare cases. Croup is a viral respiratory infection caused by human parainfluenza viruses (HPIVs). However, other causes of croup may include...

Lice lay their eggs called nits, which are placed on the hair shaft. Nits look more like dandruff but they cannot simply be shaken out of the hair like dandruff. To get rid of lice eggs, you have to follow certain steps and make sure that their eggs or nits are completely removed from the...

Our human bodies are a complex network of nerves, blood vessels, muscles, and visceral organs. While our skin is the outermost layer holding everything together, on the inside, it is a network of strong muscle fibers that hold all our internal organs in place. A hernia occurs when there is a weak...