Human Diseases

Definition Mouth ulcer is an ulcer that occurs on the mucous membrane of the oral cavity. Mouth ulcers are very common, occurring in association with many diseases and by many different mechanisms, but usually, there is no serious underlying cause. The two most common causes of oral ulceration are local …

Definition Hyponatremia is a medical condition termed for a low concentration of sodium in the blood (serum). It is usually discovered on laboratory tests as a lower than normal sodium level in the blood. It will appear as sodium or Na+ in your lab results. Actually, the main problem in …

Definition A varicocele is the swelling in the scrotum caused by a collection of abnormally large blood vessels (veins) in the scrotum. This is due to dilatation of the testicular vein which drains the scrotum and testicle and is a form of varicose vein. They are often described as feeling …

Definition Alcohol poisoning can occur when a person drinks large quantities of alcohol, including beer, wine, and liquor, in a relatively short time. As the amount of alcohol in the bloodstream increases, the liver can’t break down the alcohol and remove its toxins from the blood quickly enough. The excess …

Definition Hemangioma is a type of benign (non-cancerous) tumor in infants. This abnormal cluster of small blood vessels appears on or under the skin, typically within one to three weeks after birth. Often, there is no mark or only a faint birthmark on the skin that brightens in color and …

Definition Amyloidosis is a rare and serious protein deposition disease. It is caused by an abnormal protein called amyloid that builds up in tissues or organs. As the number of amyloid protein deposits increase in a tissue or organ, they interfere with the tissue or organ’s healthy function. Eventually, amyloid …

Definition of Thyroid Nodule The thyroid gland is located in the lower front of the neck, below the voice box (larynx) and above the collarbones. A thyroid nodule is a lump in or on the thyroid gland. Thyroid nodules are detected in about 6 percent of women and 1-2 percent …

What is Pilonidal cyst? A pilonidal cyst is an abnormal pocket in the skin that usually contains hair and skin debris. A pilonidal cyst is almost always located near the tailbone at the top of the cleft of the buttocks. Pilonidal cysts usually occur when hair punctures the skin and …