Dr. Ralph H Knudson MD

Recommended Articles

• What Could an Itchy Vulva Mean?

  The vulva is the external part of the female genitalia, which includes the skin between the anus and the vagina, and the lips of the vagina. An itchy vulva is medically called pruritus vulvae. It is normal for women to experience a slight vulvar itch, but if you have an uncomfortable and persistent...

• Lactose Intolerance: Get the Facts

  Lactose intolerance is a digestive problem where the body cannot digest the lactose present in milk and dairy products. Lactose is naturally occurring sugar found in dairy products. It is the main carbohydrate found in all types of milk.In a very small number of cases the production of lactase may...

• What Causes Cat Scratch Fever?

  What is cat scratch fever?Cat scratch fever is also known as "cat scratch disease", which is a type of bacterial infection. The disease got its name because humans contract the infection from cats that are infected with the bacterium called Bartonella henselae, which is one of the most common...

• How is Lactose Intolerance Diagnosed?

  Lactose intolerance has gained a lot of prominence in recent years. The common symptoms of lactose intolerance like bloating, flatulence, discomfort, and diarrhea can often mimic the symptoms of many other medical conditions. There is often a tendency to self-diagnose when observing these symptoms....

• What are the Signs and Symptoms of Back Pain?

  Back pain is a common problem and research has shown that at least 80% of all adults in America experience back pain on a daily basis. Though it can cause great discomfort and pain, most cases are usually not serious and can easily be fixed. According to experts, back pain occurs when the muscles,...

• Is Dengue Fever Just Another Flu?

  Dengue fever is a mosquito-borne illness in humans that usually occurs in most tropical areas of the world. Dengue fever is also known as the “breakbone fever” or “dandy fever” because of the severe joint and muscle pain experienced by the people who were infected with the virus. The same...