Dr. Robert B. Johnston M.D.

Recommended Articles

• What Is a Bruise?

  IntroductionBruises, also known as contusions, appear due to certain types of trauma. Bruises are formed when the body’s soft tissues are injured due to bumps, twists, fall, or blow to the body. This injury causes tiny blood vessels and small veins to break and release red blood cells (RBCs)...

• What Does It Mean If Your Nipple Is Inverted?

  What are inverted nipples?Inverted nipples, also called as nipple retraction, nipple inversion, or invaginated nipple, is a condition in which the nipples point inward instead of out. In some women, nipple retraction can be present at birth. In some cases, the condition may develop due to trauma or...

• What Causes Dehydration?

  Humans have approximately 60 percent of water in the body. Even if 1.5-2 percent of that water is lost, mild dehydration will start, which can lead to severe dehydration requiring immediate medical attention. Because your mood, energy level, and coordination deteriorate with the loss of body fluids,...

• Is Athlete’s Foot Contagious?

  Athlete's foot is an infection caused by a fungus, which affects the skin of the foot. This fungal infection is one of the most common skin problems. The infection starts from the toes and may spread to other areas of the body. The foot may start becoming itchy and scaly. The skin may also develop...

• 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 Is Back Pain: Get The Facts

  Every now and then, you hear people complaining about constant back pain. According to statistics, about 80% of Americans will suffer from back pain at one point of their life.Back pain can be caused by many things, but it is most commonly triggered by incorrect sitting or standing positions, not...