Diarrhea
Condition of having at least three loose, liquid, or watery bowel movements each day.
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Lactose intolerance
Common condition caused by a decreased ability to digest lactose, a sugar found in dairy products.
Symptoms may include abdominal pain, bloating, diarrhea, gas, and nausea.
Irritable bowel syndrome
Functional gastrointestinal disorder characterized by a group of symptoms accompanied together that include abdominal pain and changes in the consistency of bowel movements.
It has been classified into four main types depending on whether diarrhea is common, constipation is common, both are common (mixed/alternating), or neither occurs very often (IBS-D, IBS-C, IBS-M/IBS-A, or IBS-U, respectively).
Defecation
Necessary process by which organisms eliminate a solid, semisolid, or liquid waste material known as feces from the digestive tract via the anus.
There are a number of medical conditions associated with defecation, such as diarrhea and constipation, some of which can be serious.
Coeliac disease
Long-term autoimmune disorder, primarily affecting the small intestine, where individuals develop intolerance to gluten, present in foods such as wheat, rye and barley.
Classic symptoms include gastrointestinal problems such as chronic diarrhoea, abdominal distention, malabsorption, loss of appetite, and among children failure to grow normally.
Hyperthyroidism
Condition that occurs due to excessive production of thyroid hormones by the thyroid gland.
Signs and symptoms vary between people and may include irritability, muscle weakness, sleeping problems, a fast heartbeat, heat intolerance, diarrhea, enlargement of the thyroid, hand tremor, and weight loss.
Ulcerative colitis
Long-term condition that results in inflammation and ulcers of the colon and rectum.
The primary symptoms of active disease are abdominal pain and diarrhea mixed with blood.
Inflammatory bowel disease
Group of inflammatory conditions of the colon and small intestine, Crohn's disease and ulcerative colitis being the principal types.
In spite of Crohn's and UC being very different diseases, both may present with any of the following symptoms: abdominal pain, diarrhea, rectal bleeding, severe internal cramps/muscle spasms in the region of the pelvis and weight loss.
Dehydration
Lack of total body water, with an accompanying disruption of metabolic processes.
Excess free water or hypotonic water can leave the body in two ways – sensible loss such as osmotic diuresis, sweating, vomiting and diarrhea, and insensible water loss, occurring mainly through the skin and respiratory tract.
Sanitation
Sanitation refers to public health conditions related to clean drinking water and treatment and disposal of human excreta and sewage.
For example, diarrhea, a main cause of malnutrition and stunted growth in children, can be reduced through adequate sanitation.
Infant mortality
Death of young children under the age of 1.
Other leading causes of infant mortality include birth asphyxia, pneumonia, congenital malformations, term birth complications such as abnormal presentation of the fetus umbilical cord prolapse, or prolonged labor, neonatal infection, diarrhea, malaria, measles and malnutrition.