diseases-conditions

Sjogren's syndrome (SS) is an autoimmune disorder that typically results in dry eyes and mouth, along with occasional symptoms like joint pain or lung issues. It happens when the immune…

Hypothyroidism, also known as an underactive thyroid, happens when your thyroid gland doesn’t produce enough thyroid hormone. This gland is shaped like a butterfly and is located in your neck.…

Zollinger-Ellison syndrome (ZES) is a rare digestive condition where tumors known as gastrinomas form in the pancreas or the duodenum, the first part of the small intestine. These tumors produce…

Gonorrhea is a common sexually transmitted infection (STI) spread through sexual contact. It's a bacterial infection that can affect various parts of the body, including the eyes, mouth, throat, reproductive…

The Epstein-Barr virus (EBV) is a widespread and highly contagious herpes virus, mainly spreading through body fluids like saliva. By adulthood, about 90% of people have been infected with EBV,…

A food allergy happens when the immune system mistakenly sees certain food proteins as harmful, causing an allergic reaction. More than 170 foods can cause these reactions, but some of…

Congestive heart failure is when your heart can't pump enough blood to meet your body's needs. This can be caused by things like coronary artery disease or having a heart…

Emphysema is a long-term lung disease affecting over 3 million people in the U.S. It’s a type of COPD, marked by damage to the alveoli, the tiny air sacs in…

Acid reflux, also known as gastroesophageal reflux (GER), happens when stomach acid or food flows back into the esophagus. This occurs when the lower esophageal sphincter (LES), a muscle at…

Ehlers-Danlos syndromes (EDS) are a group of rare genetic disorders that make the skin very stretchy and weak, allow for an unusual range of joint motions, and cause blood vessels,…