Symptoms & Signs A-Z List
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Your Guide to Symptoms & Signs
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Find a symptom or sign of disease by using the Illustrated Guide (male or female), or the Symptom Checker A-Z list. Alternatively, if you know the spelling of your medical symptom, simply use the search function below.
It is very helpful to evaluate symptoms and signs in diagnosing the causes of health problems and in monitoring the status of diagnosed diseases. Moreover, assessment of symptoms and signs is important during treatment with medications in order to determine the effectiveness of treatment and the development of side effects.
This tool does not provide medical advice It is intended for informational purposes only. It is not a substitute for professional medical advice, diagnosis or treatment. Never ignore professional medical advice in seeking treatment because of something you have read on the MedicineNet Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
Popular Symptoms by Condition:
- Allergy symptoms
- Anemia symptoms
- Anxiety symptoms
- Bladder infection (UTI) symptoms
- Blood clot symptoms
- Brain tumor symptoms
- Breast cancer symptoms
- Cancer symptoms
- Cervical cancer symptoms
- Cold symptoms
- Colon cancer symptoms
- Depression symptoms
- Diabetes symptoms
- Early pregnancy symptoms
- Flu (influenza) symptoms
- Heart attack symptoms
- Hernia symptoms
- Herpes symptoms (Women)
- High blood pressure symptoms
- HIV symptoms
- Kidney stone symptoms
- Leukemia symptoms
- Lung cancer symptoms
- Lupus symptoms
- Menopause symptoms
- Mono symptoms
- MS symptoms
- Ovarian cancer symptoms
- Pancreatic cancer symptoms
- Pneumonia symptoms
- Prostate cancer symptoms
- Sinus infection symptoms
- STD symptoms (Men)
- STD symptoms (Women)
- Strep throat symptoms
- Stress symptoms
- Stroke symptoms
- Swine flu (H1N1 flu) symptoms
- Ulcer symptoms
- Yeast infection symptoms
What is a Symptom?
Symptom: Any subjective evidence of disease. A symptom is a phenomenon that is experienced by an individual. Anxiety, lower back pain, and fatigue are all symptoms. They are sensations only the patient can perceive. In contrast, a sign is objective evidence of disease. A bloody nose is a sign. It is evident to the patient, doctor, nurse, and other observers.
What is a Sign?
Sign: Any objective evidence of disease. A sign can be detected by a person other than the affected individual. Gross blood in the stool is a sign of disease. It can be recognized by the patient, doctor, nurse, or others. In contrast, a symptom is, by its nature, subjective. Abdominal pain is a symptom. It is something only the patient can know.
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