Viral pharyngitis is a sore throat caused by a virus, and causes throat pain and cold-like symptoms.
The seasonal flu is a common viral infection that causes fever, body ache, headache, and congestion.
Acute sinusitis, an inflammation of the sinuses, causes sinus pain and tenderness, facial redness and more.
The flu is a respiratory tract infection and causes fever, sore throat, runny nose, headache, cough, and more.
Aseptic meningitis, or viral meningitis, can cause fever, headaches, neck pain, nausea, and more.
Bacterial pneumonia is a lung infection caused by bacteria, and causes a cough, fever, weakness and more.
Sunburn causes a reddened, irritated area of skin caused by overexposure to the sun's rays or other UV light.
Medication side effects include nausea, vomiting, stomach upset, weakness, dizziness, seizures, and more.
A middle ear infection puts pressure on the eardrum, causing pain and, sometimes, hearing loss.
Gastroenteritis is inflammation of the stomach and intestine that causes diarrhea and vomiting.
Urinary tract infection symptoms include pain during urination, an intense urge to urinate, and more.
Roseola is a very common childhood infection and causes a very high fever followed by a rash.
Aseptic meningitis, or viral meningitis, can cause fever, headaches, neck pain, nausea, and more.
Coxsackie virus infection can cause many cold-like symptoms as well as blisters on the mouth hands and feet.
Crohn's disease is a digestive condition that causes swelling, cramping, diarrhea, and nutritional problems.
Epiglottitis is a rare, life-threatening illness that keeps air from getting to the lungs.
Hepatitis A is an inflammation of the liver. Symptoms include fever, fatigue, yellowing of the skin, and more.
Hepatitis B is an inflammation of the liver that may cause fever, fatigue, dark urine, jaundice, and more.
Juvenile rheumatoid arthritis or JRA is a long-term disease that causes pain and swelling in children's joints
Mononucleosis is a viral infection causing extreme fatigue, sore throat, fever, rash, muscle aches, and more.
Mumps is a contagious viral disease that causes painful swelling of the glands that produce saliva.
Osteomyelitis is an infection of a bone that causes pain, swelling, and redness.
Pericarditis, inflammation of the sac around the heart, causes pain, fever, weakness, palpitations, and more.
Kidney infection, caused by bacteria, is marked by sudden chills and fever, pain, nausea and urinary issues.
Lyme disease is a bacterial infection spread through tick bites; symptoms include rash, fever chills, and more.
Rheumatic fever is an inflammatory disease and causes fever, joint pain, abdominal pain, rash, and more.
Rheumatoid arthritis is an autoimmune disease that causes pain, swelling, and joint damage.
Scarlet fever is a red itchy rash on the body caused by streptococcal bacteria.
Tuberculosis usually infects the lungs, causing a bad cough with blood, chest pain, fever, chills, and fatigue.
When urine flows from the bladder, through the ureters, up to your kidneys it's called vesicoureteral reflux.
Inflammatory bowel disease causes swelling and symptoms such as cramping, chronic diarrhea, and bleeding.
Cellulitis, a bacterial infection of the skin, causes red, tender skin that is usually swollen and warm.
A drug overdose can be fatal and causes sleepiness, confusion, coma, vomiting, and other symptoms.
Aspirin poisoning is a medical emergency and can cause nausea, vomiting, drowsiness and more.
Bronchial adenomas are cancers of the respiratory tract causing a cough, fever, or shortness of breath.
Cryptococcosis is a lung disease causing a wide range of digestive, respiratory and cardiovascular symptoms.
A thyroid storm, dangerously high levels of thyroid hormone, causes fever, racing heartbeat, sweating, and more
Sarcoidosis is a rare disease that can cause swelling and hard lumps in the lymph nodes and organs.
Lupus is a chronic autoimmune disease marked by swollen painful joints, a rash, swollen lymph nodes, and more.
Phlebitis means inflammation of the veins, and can cause redness, itching, irritation, pain, and swelling.
Drug withdrawal occurs when you suddenly stop taking a drug; symptoms vary from drug to drug.
Valley fever is a fungal infection that starts in the lungs and causes mild flu-like symptoms.
Viral pneumonia is a lung infection caused by viruses, and causes coughing, wheezing, fever, chills, and more.
Thalassemia is a rare group of genetic blood disorders effecting red blood cells and leading to anemia.
A skin abscess, or boil, is a swollen, painful, red and warm lump of skin that may rupture and drain pus.
A tick-related illness may cause a rash that expands out from the site of the bite, fever, chills, and more.
Sickle cell disease symptoms include repeated infections, yellow skin, fatigue, dizziness, pain, and more.
Histoplasmosis is a fungal infection of the lungs causing muscle aches, fever, chest pain, cough, and more.
A pilonidal cyst forms under the skin at the tailbone, and usually contains skin debris and hair.
An abdominal aortic aneurysm is swelling of the main abdominal artery and can cause sudden chest pain.
Renal cell cancer is a type of kidney cancer that can cause bloody urine and persistent pain in the side.
Malaria is a dangerous disease spread by mosquitoes and causes severe fever, chills, headache, and anemia.
Toxic shock syndrome is a serious bacterial infection and causes fever, low blood pressure, a rash, and more.
A brain infection is inflammation of the brain or spinal cord and can cause nausea, fever, seizures and more.
Chagas disease is caused by a tropical parasite and can cause fever, ill feeling, and swelling around the eye.
Whooping cough, a contagious respiratory infection, causes a runny nose, a mild fever, and a severe cough.
Dengue fever is a flu-like illness that can be fatal if not treated.
Legionnaires' disease is a severe type of pneumonia and causes headache, chills, high fever, a cough, and more.
Typhoid fever is a life-threatening illness and causes fever, general aches and pains, headache, and weakness.
Kawasaki disease is an uncommon inflammation of the blood vessels; the most common symptom is fever.
Bird flu is spread to people from birds and causes fever, cough, sore throat and muscle aches.
Mesenteric lymphadenitis is an inflammation of abdominal lymph nodes causing pain, diarrhea, fever, and more.
Plague is a rare but deadly bacterial infection causing fever, vomiting, seizures, organ failure, and more.
Shingles is a painful, blistering, skin rash typically found on the back and sides of the chest.
West Nile virus is an infection spread by mosquitoes, and can cause diarrhea, fever, abdominal pain, and more.
Measles is a highly contagious viral infection and causes a fever, cough, a rash, sore throat, and more.
Signs of endocarditis, an infection of the heart, include swelling, rash, sinus congestion, nausea, and more.
Cat scratch disease is a bacterial infection caused by a cat scratch or bite.