Dr. Diana T Yu M.D.

Head lice are tiny, wingless, blood-sucking organisms. They reside in the hair of your head and feed on your scalp’s blood. An adult louse has a size equal to that of a sesame seed, while the size of its eggs is roughly that of dandruff.Causes of Head LiceHead lice are highly contagious and can be...

Hyperthyroidism refers to the condition when there is an over secretion of thyroid hormones by the thyroid gland in the body. The hormones T3 and T4 are way over their normal levels. Often referred to as an overactive thyroid, there are various causes of this disease, but the one that is most...

What are leukocytes?White blood cells (WBCs) are also called as leukocytes. They protect the body from infections by fighting foreign invaders such as viruses, bacteria, fungi, or parasites. Phagocytes and lymphocytes are forms of white blood cells (WBCs).Phagocytes engulf foreign particles like...

Extreme thirst is medically referred to as polydipsia, which is believed to be the first signs of diabetes. Polydipsia can also be accompanied by dry mouth, which could be constantly or temporarily experienced.In order for the body to function properly, it is important to drink an adequate amount of...

There are several types of pneumonia that vary in their degree of seriousness. Pneumonia caused by a viral infection can make people feel very sick with fever, cough, and tiredness. However, viral pneumonia tends to go away on its own after some time. A "walking pneumonia" is a mild case of...

Genital warts may appear in/around the anus, in the pubic area and or in the vagina. They appear like pink or red growth in or around the sex organs. They often appear in clusters of 3-4.They may grow and spread rapidly. They are usually painless but sometimes might cause mild pain, itching and...