Dr. J. Donald Siegrist MD

Sinusitis occurs because of the infection of the sinuses or cavities of the nasal passage, causing an inflammation and swelling of the tissue lining them. The usual cause is a virus, and the infection persists even when the upper respiratory symptoms have disappeared. Bacteria or fungi can also...

IntroductionCyanosis is the medical term for a bluish discoloration of the skin, nails, toes, and mucous membranes. It is generally caused by low levels of oxygen in the blood. Normally, blood appears bright red when it is fully oxygenated. However, when blood does not have enough oxygen, it turns...

Mono SymptomsInfectious mononucleosis is the technical and formal name of the disease commonly known as "mono". This disease is typically caused by the Epstein-Barr virus (EBV), but it can also be caused by other viruses such as cytomegalovirus. Once a person becomes infected, the symptoms may...

Conjunctivitis is a very unpleasant eye condition that may cause discomfort and pain in the eyes. This disease has to be medically treated. Thus, it’s important to determine the causes and triggers of this disease. If you suspect that you have conjunctivitis, you should visit an ophthalmologist to...

What Is Nipple Piercing? In the Western world, only the ears used to be pierced. The last 15 years, however, have seen an increase in the lifestyle and fashion trend of piercing parts of the body other than the earlobes. Nipples are among the locations chosen to be pierced, by both females and...

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...