Medical Conditions

Erectile dysfunction is the frequent or consistent inability to get or sustain an erection of the penis that is satisfactory for engaging in sexual …

Many of the viruses, bacteria, parasites, and fungi that can invade the human body are also capable of attacking the surface or interior of the eye. Infectious eye …

Farsightedness, known medically as hyperopia, refers to being able to see fairly well at a distance but not close up.

Female sexual dysfunction occurs when a woman is not able to fully, healthily, and pleasurably experience some or all of the various physical stages the body …

Fetal alcohol spectrum disorder (FASD) is a term used to describe a number of problems that can result in people whose mothers drank alcohol during …

Although normal body temperatures can vary throughout the day, the average adult normal body temperature when taken by mouth with a thermometer is 37°C …

Fibrocystic breasts, a condition causing breast pain, cysts, and noncancerous breast lumps, affects many women. It may also be called fibroglandular …

Fibromyalgia is a term referring to a pattern of generalized pain all over the body, but without any visible signs of inflammation or change. It is very common …

Fifth disease, also called erythema infectiosum, is a viral infection caused by human parvovirus B19. It occurs most commonly in children with up to 70% of all …

Food poisoning is a very common illness. For most people it is usually mild, but food poisoning can be severe and even deadly for some individuals. Most cases of …

There are two major causes of fungal infections of the skin and nails: yeast and dermatophytes. Yeast infections of the skin and nails are generally caused by an …

Gallstones are crystal-like masses that typically form in the gallbladder. The gallbladder is a small organ located on the right side of the abdomen, just …

Gangrene is the death of tissue in your body. It develops when the blood supply to an affected body part is cut off because of various factors such as infection, …

Gastroenteritis literally means inflammation of the gastrointestinal tract. Viral gastroenteritis is also called "stomach flu." It is extremely common, …

Genital herpes is a common sexually transmitted infection (STI; also known by the older term sexually transmitted disease or STD) in North America and Europe, and …

GERD stands for gastroesophageal reflux disease, which is the backflow of stomach contents (including stomach acid) upward into the esophagus (the swallowing tube …

Giant cell arteritis (GCA) is a common inflammation disease of medium- to large-sized arteries. These arteries can become narrowed, restricting blood flow to …

Giardiasis is an intestinal infection caused by a microscopic, single-celled parasite known as Giardia lamblia (also known as Giardia duodenalis). A parasite …

Gingivitis is an inflammation of the gums (known to doctors as the gingiva) caused by bacteria. Eventually the bacteria can get into the bones at the root …

Glaucoma is a type of progressive eye damage in which optic nerve cells are damaged by excess fluid pressure in the eyeball. It is one of the leading causes of …

Each year, approximately 3,000 Canadians are diagnosed with brain tumours. A glioma is a type of malignant brain tumour. A malignant tumour is a mass …

Glomerulonephritis is a progressive kidney disease that involves the glomeruli, the individual filtering units of the kidney that produce urine. When …

Gonorrhea is one of the most common sexually transmitted infections in North America. Gonorrhea is caused by the bacterium Neisseria gonorrhoeae. The …

Gout is a type of arthritis that is characterized by sudden, severe attacks of joint pain with tenderness, redness, warmth, and swelling in the affected area. It …

Guillain-Barré syndrome (GBS) is a rare neurological disorder which causes progressive paralysis, starting from the feet and progressing up throughout the …

H1N1 influenza is a contagious respiratory disease that causes symptoms of seasonal influenza in people. The name "swine flu" was initially used to …

Halitosis is also referred to as oral malodor, but most of us know it quite simply as "bad breath." Even though it's a comparatively minor health problem, …

Hand, foot, and mouth disease (HFMD) is a viral infection that usually affects babies and children. HFMD can lead to fever, a blistering rash on the hands and …

Hay fever is also known as pollinosis or seasonal allergic rhinitis. For most people, a single allergen sets their symptoms off at about the …

Headaches are extremely common – most people have a headache at some time in their life. Most headaches disappear on their own (with a little time) or with …