Symptom
* Most symptoms associate with diseases
  - illnesses
  - infectious diseases
* Some symptoms also respond to changes in the environment, and changes in caregiver behaviors
  - are common in people of all ages with depression
* affect quality of life, mental health and psychomotor performance
  - thoughts
* are a change in the person's perception of themselves
  - accompanied by pain
* are caused by deficiencies
  - changes in someone's body that are signs for a disease
  - evidence
  - indications
  - part of diseases
  - problems that a person experiences due to an illness
  - signals that there is something wrong with the human organism
  - symbols of the source of an illness
  - the bodies attempt to adapt to and deal with various internal and external stresses
* are the body's attempt to heal
  - rid itself of such substances
  - expression of what is happening to the plant as a result of an infection
  - expressions of disease on the host plant
  - means by which our body attempts to reestablish a balance that has been lost
  - physical characteristics of disease expressed by the plant
  - plant's response to infection
  - visible response of a plant to a causal agent over time
  - ways that people feel or ways that their bodies appear
  - inflammation
  - serious illnesses
* associated with periodontal disease are sore, inflamed gums that have a tendency to bleed.
* begin years after a person begins to smoke.
* benefit an organism by adjusting to the stresses impinging on it.
* can have causes
  - possible causes
* come in many forms such as parasites, fungus, bacteria and viruses.
* consist of nausea
  - onset nausea
* depend on the cause, severity, and type of heart disease
  - types
* develop as a direct result of disease processes.
* develop over several weeks
  - when a person exceeds their tolerance
* first become apparent when plants begin to wilt or develop an unhealthy appearance.
* follow infection
  - patterns
  - phases
* help diagnoses
  - specific diagnoses
* include abdominal pain.
* include abnormal conditions
  - fatigue
  - appearances
  - breathe difficulty
  - burn pain
  - chest pain
  - constipation
  - coughs
  - depressions
  - development
  - discharge
  - dry coughs
  - exhaustion
* include extreme exhaustion
  - general weakness
  - growth
  - impairment
  - intense pain
  - join pain
  - kidney problems
  - localize pain
* include mild abdominal pain
* include muscle pain
  - waste
  - nasal discharge
  - vaginal discharge
* indicate ailment
  - different conditions
  - digestive problems
  - existence
  - injuries
  - liver injuries
  - respiratory problems
  - several different conditions
  - states
* influence the emotional temperature of family relationships.
* is evidence
* lead to consequences
  - health consequences
* lead to serious consequences
  - trouble
* occur in individuals
* occur when the insects bite or burrow into the skin to lay their eggs
  - parasite invades tissues of the colon
* persist for time
* play an important role in the diagnosis of mononucleosis.
* produced by a brain tumor often mimic the symptoms of other diseases and vice versa.
* refer to changes in the infected or diseased plant or plant tissue.
* relate to conditions
  - essential roles
  - estrogen deficiencies
  - exposure
  - functions
  - gastrointestinal problems
  - recurrent inflammation
  - underlie conditions
* require treatments.
* resemble flu symptoms
* respond to treatments.
* see in patients.
* support diagnoses.
* vary among individuals
  - in severity
  - widely among people and, sometimes, depression can hide behind a smiling face
+ Common cold, Signs and symptoms, Progression: Diseases caused by viruses
  * A cold usually begins with feeling tired, a feeling of being chilled, sneezing, and a headache. Additional symptoms such as runny nose and cough follow within two or more days. Symptoms typically reach their worst two to three days after the infection begins. Symptoms usually end after seven to ten days, but can last up to three weeks.
+ Ectopic pregnancy, Symptoms: Diseases and disorders of the female reproductive system
  * Symptoms are usually similar to a normal pregnancy at the start. For ectopic pregnancies pain in the pelvis and bleeding from the vagina is also common. If the fallopian tube is broken, it will cause internal bleeding and possibly shock and fainting. 21 May 2012.
+ Food poisoning, Signs and symptoms: Illnesses :: Food and drink
  * Symptoms start many hours to many days after eating.
+ Kidney, Kidney diseases: Anatomy of the urinary system
  * This is when a bacteria grows in the kidney. Symptoms are back pain, vomiting, fever, and dark or bloody urine. People with pyelonephritis need strong antibiotic medicines to kill the bacteria.
+ Larynx, Disorders of the larynx: Anatomy of the respiratory system
  * There are several things that can cause a larynx to not function properly. Some symptoms are hoarseness, loss of voice, pain in the throat or ears, and breathing difficulties. Larynx transplant is not done very often. The world's first successful operation took place in 1998 at the Cleveland Clinic, and the second took place in October 2010 at the University of California Medical Center in Sacramento.
+ Malaria, Signs and symptoms of malaria: Diseases spread by insects :: Parasites :: Apicomplexa
  * Symptoms are changes in someone's body that are signs for a disease. But some people can get symptoms after only a week, and some may be infected with malaria and not have symptoms for a year.
  * Symptoms' are changes in the human body. Symptoms are ways that people feel or ways that their bodies appear. These are things that show if a person has a disease.
+ Phenylketonuria, Symptoms: Genetic disorders
  * Symptoms vary from person to person. Because of the rarity of PKU, many symptoms go undiagnosed or unrecognized. In addition, there are variations in the categories of PKU individual's. There are untreated, early treated, those returning to diet, Hyperphe, uncontrolled, and highly controlled. For your average infant a doctor will diagnose PKU with a quick blood test. Their symptom will be high PHE levels.
+ Schizophrenia, Diagnosis: Mental illnesses :: Psychosis
  * Symptoms can include acting as though one is in a daze.