Conditions

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The gallbladder is an organ that stores the bile made in the liver and sends it into the small intestine to help digest fat. Gallbladder cancer is uncommon, but often curable if diagnosed in its early stages.


Gallstones form when bile stored in the gallbladder hardens into stone-like material. Too much cholesterol, bile salts, or bilirubin (bile pigment) can cause gallstones...


Learn more about what causes gangrene, symptoms and world-class treatments available at Northwell Health.


Gastritis is an inflammation of the stomach lining. While the lining of the stomach is quite strong and can withstand strong acid, drinking too much alcohol, eating spicy foods, or smoking can cause the lining to become inflamed and irritated...


Gastroesophageal reflux disease (GERD) is a digestive disorder that is caused by gastric acid flowing from the stomach into the esophagus. Gastroesophageal refers to the stomach and esophagus, and reflux means to flow back or return...


Gastroesophageal refers to the stomach and esophagus, and reflux means to flow back or return. Gastroesophageal reflux (GER) is the return of acidic stomach juices, or food and fluids, back up into the esophagus.


Gastrointestinal stromal tumors (GISTs) are rare tumors of the GI tract. They start in special cells called the interstitial cells of Cajal (ICCs). ICCs are part of the autonomic nervous system and coordinate the automatic movements of the GI tract...


There are several genetic endocrine disorders that can lead to a greater risk of cancer of the endocrine system, including carcinoids (malignant tumors that develop in hormone producing cells of the adrenal glands)...


Genital herpes is a common sexually transmitted disease (STD) caused by two viruses: herpes simplex virus type 1 (HSV-1) and herpes simplex virus type 2 (HSV-2)...


Gestational diabetes is glucose intolerance, or high blood sugar, that is first recognized during pregnancy in a woman who was not previously diagnosed with diabetes...


Gestational diabetes is a condition characterized by hyperglycemia (high blood sugar) and insulin resistance that is first recognized during pregnancy.


Learn about gestational hypertension, a condition associated with high blood pressure during pregnancy, and the leading treatment options at Northwell.


Giardiasis is an infectious diarrheal disease caused by the parasite Giardia intestinalis (also known as Giardia lamblia or Giardia duodenalis). This parasite can be transmitted through oral-fecal contact and by water contaminated by feces...


Gilbert’s disease impacts the way bilirubin, a substance with a yellowish pigment made by the liver, is processed. When bilirubin is not processed properly, it causes jaundice (a yellowing of the skin and eyes)...


Glomerular disease refers to various diseases including, glomerulosclerosis and chronic and acute glomerulonephritis. Kidneys are made up of millions of nephrons that filter and remove fluid and waste from the kidneys and turn it into urine...


Goiters are benign (non-cancerous) thyroid tumors/nodules, cysts and massive enlargement of the gland that can cause trouble breathing or swallowing. Learn more at the New York Head and Neck Institute.


Goodpasture syndrome is a rare, autoimmune disease that can affect the lungs and kidneys. Normally, the immune system creates antibodies to fight off germs...


Gout is characterized by inflamed, painful joints due to the formation of crystal deposits at the joints. Also known as "the disease of kings and the king of diseases," gout affects more men than women and is often associated with obesity, hypertension (high blood pressure), hyperlipidemia (high levels of lipids in the blood), and diabetes...


Graves' disease is a type of hyperthyroidism (an overactive thyroid gland) and is considered a disorder of the immune system (autoimmune disease). Patients will develop a very high heart rate and protruding/prominent eyes, may become mentally ill and (if untreated) die from heart failure...


Growth plate fractures are very common injuries. Most fractures of the growth plate do not result in any problems; however, sometimes the fracture injures enough of the growth cartilage to prevent it from growing properly. Thus, it is important to seek care quickly for a growth plate fracture.


Learn more about the dental services available at Northwell Health.


Gynecological infections and inflammations can be complicated and polymicrobial in nature. The most common inflammations are vulvitis, vaginitis and cervicitis.