Although the absence of menstruation (amenorrhea) is seldom serious, the condition can often be linked to an underlying problem requiring treatment.
Though anal cancer is rare, incidence of anal cancer is increasing. Find out the symptoms and causes of cancer of the anal canal.
Ankylosing spondylitis is an inflammatory arthritis that affects your spine and nearby joints. Over time, your spine may become stiff and immovable.
Asbestosis is a lung disease resulting from prolonged exposure to asbestos, a product once commonly used in the building and manufacturing industries.
Ataxia describes lack of muscle coordination while performing voluntary movements. A sign of an underlying condition, ataxia can affect any part of your body.
Bladder stones are small masses of minerals in your bladder — often forming as a result of an enlarged prostate, nerve damage or infection.
Broken arm? If your arm hurts too much to use normally, seek prompt medical care.
Broken leg — Comprehensive overview covers symptoms, diagnosis and treatment of this type of fracture.
Brucellosis is an infectious disease that spreads from animals to people, mainly via unpasteurized dairy products. Travelers should take special care to avoid infection.
C. difficile can be a life-threatening infection. It typically develops when antibiotics destroy other bacteria in your intestines, allowing C. difficile to flourish.
Cerebral palsy — Comprehensive overview covers symptoms, causes and treatment of this movement disorder.
Chiari malformation is an uncommon condition in which brain tissue extends into the spinal canal, causing headaches and other potentially serious symptoms.
Chronic pelvic pain is pain in your pelvic region — the area below your bellybutton and between your hips — that lasts six months or longer.
Chronic sinusitis involves long-term inflammation or infection of the sinus cavities. Medications can help, and in rare cases surgery can treat this painful condition.
Churg-Strauss syndrome is a rare disorder marked by blood vessel inflammation that affects organs throughout the body. Asthma is the most common sign.
Cluster headaches usually occur repeatedly on one side of your head and cause intense pain that feels like a stabbing sensation in your eye.
Concussions can be serious injuries that need sufficient time to heal.
Craniosynostosis is a birth defect in which one or more of the bony plates of a baby's skull fuse prematurely, misshaping the head.
Cyclic vomiting syndrome can last for hours or days and shares many triggers with migraines.
Tobacco smoke causes most cases of emphysema. Although quitting smoking can't reverse the damage, it can help keep this serious lung disease from becoming worse.
Encephalitis is inflammation of the brain usually caused by a viral infection. Severe cases can cause brain damage, even death.
Endometrial cancer is one of the most common cancers in women. If detected early, this cancer is often successfully treated.
Enlarged heart is often a sign of a serious heart condition. Find out causes and treatments for enlarged heart.
An enlarged spleen is usually a sign of an underlying problem. Treatment varies, depending on what's causing the enlargement.
Reduce your risk of esophageal cancer by eating more fruits and vegetables.
Esophageal varices — enlarged veins in the esophagus — are a serious complication of liver diseases such as cirrhosis.
Gallstones often don't cause symptoms. But if you have a gallbladder attack, you're not likely to forget it.
Glomerulonephritis affects your kidneys' filtering function. Complications include high blood pressure, protein in the urine (proteinuria) and kidney failure.
Growth plate fractures can interfere with your child's normal bone growth, resulting in a stunted or twisted limb. Prompt, proper care is essential.
Gynecomastia, enlarged breasts in males, is a common problem. Find out about treatments and how to cope.
Heart disease, usually thought of as blockages in the arteries that can cause a heart attack, can describe any medical condition affecting your heart.
Back pain may mean you have a herniated disk — but not always. In fact, you can have disk herniation without pain. Here are the facts.
Caused by contractions of your diaphragm, hiccups are usually harmless. But rarely, hiccups may signal an underlying medical condition that requires treatment.
Hirsutism refers to excessive hair growth in women. Possibly a result of elevated male hormones, hirsutism is often caused by an underlying condition.
Indigestion can ruin meals and make you feel uncomfortable. Take steps to prevent symptoms like upset stomach, bloating and pain.
Find out what could cause knee pain.
Krabbe disease is a rare, inherited disorder — most often affecting infants — that impairs functioning of the central nervous system and usually leads to early death.
Legionnaires' disease, a severe form of pneumonia, is caused by bacteria that can live in water in air conditioning systems, showers and spas.
Liver hemangioma is the most common type of noncancerous (benign) liver mass. Learn how doctors treat liver hemangioma.
A monthly period is bad enough. Add in painful menstrual cramps, and you may be cursing this thing called womanhood. How do you get relief?
A migraine isn't an ordinary headache. In addition to severe head pain, it can cause nausea, vomiting, and extreme sensitivity to light and sound.
Mild cognitive impairment (MCI) is a transition stage between the cognitive changes of normal aging and dementias such as Alzheimer's disease.
Nasal polyps, inflammation-related growths in the nasal passages or sinuses, can block the flow of air and fluid in your nose.
Nonalcoholic fatty liver disease is associated with obesity and diabetes. Lifestyle changes may prevent it from becoming serious.
Pancreatic cancer is often fatal. Find out which new treatments offer hope.
The pain of pancreatitis, an inflammation of the pancreas, can last for days, or in chronic cases, for years. Pancreatitis can lead to serious complications.
Pericardial effusion, the accumulation of excess fluid in the sac-like structure around the heart, can decrease heart function and can be life-threatening.
Pleurisy is the painful inflammation of the membranes that surround your lungs. The cause can be one of a number of underlying conditions.
Pneumonitis is a general term for lung inflammation. It can cause difficulty breathing, often accompanied by a cough.
Primary aldosteronism is a condition in which your adrenal glands overproduce a hormone that, in excess, can cause high blood pressure. Effective treatments are available.
Pseudotumor cerebri — Comprehensive overview covers symptoms, causes, treatment of increased pressure inside the skull.
Pulmonary fibrosis results from scar tissue that forms in your lungs. This affects your ability to breathe and obtain enough oxygen.
Schizophrenia causes delusions, hallucinations and behavior changes. The good news is that new medications can often effectively manage schizophrenia symptoms.
Sheehan's syndrome is a rare pituitary gland disorder that occurs in women usually as a result of severe blood loss during childbirth.
Find out about this rare cause of heart attack in young, healthy people.
Swollen lymph nodes usually indicate an infection, particularly in children. However, there are many causes, ranging from the common cold to cancer.
Syringomyelia is the development of a fluid-filled cyst within your spinal cord. It can cause a variety of neurological symptoms, including pain, weakness and stiffness.
A tension headache is the most common form of headache. A number of treatments are available to help you deal with the pain.
Thrombophlebitis occurs when a blood clot and swelling develop in a vein, typically in your leg. The cause often is prolonged inactivity or bed rest.
TMJ disorders are painful conditions centered where your jawbone attaches to your skull. The pain may be temporary or chronic.
Toxic hepatitis is liver damage that occurs when your liver isn't able to break down certain toxins — including common pain relievers such as Tylenol.
While mild traumatic brain injury generally results in few long-term problems, more severe injury can cause several physical, emotional, behavioral, communication and cognitive problems.
Uterine fibroids are noncancerous tumors of the uterus. Medical therapy and surgical procedures can shrink or remove uterine fibroids.
March 25, 2015
- Radiation-emitting products: Computed tomography (CT). U.S. Food and Drug Administration. http://www.fda.gov/Radiation-EmittingProducts/RadiationEmittingProductsandProcedures/MedicalImaging/MedicalX-Rays/ucm115317.htm. Accessed Dec. 23, 2014.
- Computed tomography (CT) — Body. Radiological Society of North America. http://radiologyinfo.org/en/info.cfm?pg=bodyct. Accessed Dec. 23, 2014.
- Contrast materials. RadiologyInfo.org. http://www.radiologyinfo.org/en/safety/index.cfm?pg=sfty_contrast. Accessed Dec. 29, 2014.