Dr. Seyed A Shahmehdi M.D

What is pleurisy?Pleurisy is a condition, in which the lining that surrounds the lungs and the interior of the chest cavity is inflamed. Due to the inflammation of the pleura, this condition is also called as pleuritis. The pleural space is the space between the lungs and the chest cavity wall....

A urinary tract infection (UTI) is a common infection in any part of the urinary or renal system (urethra, ureters, bladder, and kidneys). In fact, it is the second most common type of infection among adults. Besides being responsible for over 8 million visits to healthcare professionals every year,...

IntroductionUrticaria is also known as hives, which are itchy and red welts that can be triggered by certain situations or substances. These welts may vary in sizes. They tend to repeatedly appear and fade away as the skin reaction runs its course. Each of these welts is said to characteristically...

What is candidiasis of the skin?There are various types of bacteria and fungi that thrive on the skin. Strangely, these bacteria and fungi are a part of the natural environment and many of them help the body carry out normal functions. However, some of these bacteria and fungi can negatively react...

A dark stool refers to a stool that is either black or dark red in color. You may pass dark bowel movements after consuming dark-colored foods or when an injury or bleeding is present in your gastrointestinal tract. If you pass dark or bloody stools, see your doctor immediately to rule out serious...

 What is active immunity?...