Dr. Stanley Calderwood MD

What Causes Blackheads?Blackheads form when the sebaceous glands of skin produce excessive oil. This oil and dead skin cells clog the hair follicles in your skin, producing a bump called a comedone. If the skin over the bump stays closed, it forms a whitehead. When the skin over the bump ruptures,...

Hypothyroidism is a type of hormonal imbalance in which the thyroid hormones are in lower than normal. Essentially, it is the result of an underactive thyroid, and may be referred to as such. The two major hormones produced by the thyroid gland (T3 and T4) play an important role in your metabolism...

IntroductionA decrease in the number of white blood cells (WBCs) is referred to as leukopenia. There are several causes for leukopenia. It may be due to certain drugs, cancer, radiation and chemotherapy for cancer, stem cell transplant, surgery, steroids, or autoimmune disorders. The immune system...

Lymphoma is a blood cancer that affects both children and adults.Lymphoma begins its growth in the lymphatic white blood cells of the lymph system. This system is a major warrior in fighting off infections and diseases. It is part of the body’s immunity team.The lymph system loops throughout the...

PurpuraPurpura refers to purple-colored spots that are usually seen on the skin, including mucous membranes and other organs. It is also called skin hemorrhages or blood spots.Purpura is usually recognized when there is pooling of blood under the skin due to ruptured small blood vessels. The size of...

Leukemia in its early stages may present no signs or symptoms, as these only appear when the leukemia cells have taken over a large number of normal blood cells. A person with leukemia is very lucky indeed if early-stage detection occurs incidentally, through a routine blood test or one done for...