Conditions

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Idiopathic hydrocephalus is a condition, in which there is an excess of cerebrospinal fluid (CSF) in cavities within the brain, called ventricles. With this additional fluid, pressure builds within the brain causing a variety of symptoms...


Idiopathic scoliosis refers to the 80 to 85 percent of scoliosis cases in which the cause is unknown. Scoliosis is a spinal deformity which causes an abnormal curvature of the spine...


Impotence, or erectile dysfunction, is the inability to achieve an erection, and/or dissatisfaction with the size, rigidity, and/or duration of erections...


Infectious mononucleosis, or mono, is a viral infection caused by the Epstein-Barr virus. It occurs most often in adolescents and young adults, but people can get it at any age...


Infertility is much more common than once believed, and impacts up to 12 percent of couples. The American Society of Reproductive Medicine defines infertility as failure to conceive after one year of regular intercourse...


Inflammatory bowel disease (IBD) is a broad term used to describe chronic or recurring conditions that cause the inflammation of the inner lining of the gastrointestinal tract...


Inflammatory spondyloarthropathy is a group of rheumatic diseases that affect the joints, ligaments and tendons in your spine, causing inflammation, pain and swelling in the joints and muscles...


Influenza, or flu, is a respiratory infection caused by a number of influenza viruses. Flu affects the nose, throat and lungs and can range from mild to severe...


Facial pain caused by infraorbital neuralgia can be uncomfortable, and even disabling. The infraorbital nerve (ION) is a branch of the trigeminal nerve that provides sensation to facial skin...


A hernia occurs when a section of intestine protrudes through a weakness in the abdominal wall. A soft bulge is seen underneath the skin where the hernia has occurred...


If you experience difficulty falling asleep, staying asleep, or enjoying a restful night's sleep, you may be suffering from insomnia. Insomnia is defined as the perception or complaint of inadequate or poor-quality sleep because of one or more of the following: Difficulty falling asleep Waking up frequently during the night with difficulty returning to sleep Waking up too early in the morning Non-refreshing sleep Insomnia is a common symptom in the US...


Interstitial cystitis (IC) is a complex, chronic disorder characterized by an inflamed or irritated bladder wall. Once believed to be extremely rare, IC is now known to affect 3 million to 8 million women and 2 million men in the U...


Interstitial lung disease is a group of disorders in which the lungs develop significant and sometimes disabling inflammation, scar tissue or fibrosis within the tissues.


Intracerebral hematoma occurs when there is bleeding inside your brain. This is most often caused from a closed-head injury. However, it can also occur from an open or penetrating injury or as a result of a skull fracture...


Intracranial hypertension is the result of the increased cerebrospinal fluid pressure in your skull. The condition can be both painful and debilitating...


Intractable epilepsy, also called drug-resistant, uncontrolled, or refractory, epilepsy, is when recurrent seizures cannot be fully controlled by medications...


Intraductal Papillary Mucinous Neoplasms (IPMNs) are cystic neoplasm (tumors) that grow within the pancreatic ducts (intraductal) and are composed of mucin-producing cells (mucinous)...


Irritable bowel syndrome (IBS) is an intestinal disorder that causes cramps, pains, gassiness, bloating and changes in bowel habits. IBS has inaccurately been called by many names, including the following: Colitis Mucous colitis Spastic colon Spastic bowel Functional bowel disease IBS is a functional disorder because there is no sign of disease when the colon is examined...


Islet cell tumors, also called pancreatic neuroendocrine tumors (pNETs), are a diverse group of rare pancreatic lesions that make up about 5% of pancreatic tumors...


Isthmic spondylolisthesis is a condition of the spine that occurs when a vertebra (one of the interlocking bones that forms the spinal column) slips forward (anterolisthesis) or backward (retrolisthesis) on the vertebra below...