Dr. Gerard Carl Hellman MD

Petechiae are tiny dots that appear as red, brown, or purple in color beneath the skin. They are usually seen in clusters on the stomach, buttocks, arms, and legs. However, they may also appear inside the mouth or on the eyelids. Petechiae may indicate different conditions, which can range from...

IntroductionAn average person typically holds approximately 5 liters of blood. To stay alive, the body generally needs to have more than 2 liters of blood in the system. It can be life-threatening if more than 2 liters of blood is lost in the body. For this reason, simply donating blood can help...

The ABO (A, B, AB, or O) blood group system is used to classify different types of antibodies in the plasma and antigens in the red blood cells (RBCs). The ABO blood group and RhD antigen determine the type of blood that is a perfect match for blood transfusions. The four ABO blood groups are: ...

Anemia is sometimes more commonly referred to as low iron because its root cause is less iron being produced by the body. There are staggering numbers of people increasing in the world every year who are under the torment of this notorious disease. The basic dysfunction starts within the red blood...

Thalassemia intermedia is an inherited genetic blood disorder. It is a milder form of thalassemia, wherein there is a reduced production of “adult” hemoglobin, which leads to anemia. It means that your child has a missing ingredient to create a normal adult hemoglobin.Thalassemia intermedia is...

During a stem cell transplantation or autotransplantation, the patient receives high chemotherapy dosage which is sometimes done to the entire body to get rid of the cells that are in the bone marrow (including the myeloma cells). Afterwards, the patient receives new stem cells to form...