Dr. John A. Feilbach M.D.

What is anemia?Anemia occurs when there are low levels of red blood cells (RBCs) in the body. Red blood cells are the ones that carry oxygen all over the body. So when a person's RBC count is lower than normal, it means that there is not enough oxygen in the blood, causing symptoms of anemia, such...

Ringworm is a fungal type of infection, which is caused by the fungal organisms known as dermatophytes. It can affect various parts of the body, especially the skin on the hands, feet, face, and neck. It can also affect the scalp or nails. Initially, it appears as a small dot. Gradually, as the...

What is a blood blister?A blood blister is a raised piece of skin that has blood inside it. Blood blisters are somewhat similar to blisters that have clear fluid in them. The blisters are usually harmless and tend to go away within a few weeks without treatment. A blood blister can contain blood,...

Asthma is a lung condition where the lung bronchioles constrict and get filled with mucus, narrowing the passage for air to pass through. It is a non-curable condition. However, the symptoms can be suppressed with proper medication, exercise (as prescribed by the doctor, or else, doing inappropriate...

What is yawning?Usually, yawning is associated with boredom, fatigue, and tiredness. Yawning is also very common in animals, such as dogs, monkeys, snakes, and carnivores. Yawning is also associated with numerous superstitious beliefs.In humans, yawning is considered as a purposeful non-verbal...

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...