In-depth

Acromegaly

Acute sinusitis

Alcohol intolerance

Amenorrhea

Although the absence of menstruation (amenorrhea) is seldom serious, the condition can often be linked to an underlying problem requiring treatment.

Anemia

Antiphospholipid syndrome

Aplastic anemia

Arteriovenous malformation

Aspergillosis

Astigmatism

Bee sting

Behcet's disease

Bell's palsy

Brain aneurysm

Brain AVM

Brain tumor

Brucellosis

Bruxism (teeth grinding)

Carbon monoxide poisoning

Carotid artery disease

Chagas disease

Chiari malformation

Child abuse

Chronic sinusitis

Coarctation of the aorta

Cold sore

Common cold

Concussion

Convergence insufficiency

 

Cough headaches

Cushing syndrome

Dehydration

Dengue fever

Depression (major depressive disorder)

Ear infection (middle ear)

Ebola virus and Marburg virus

Ehrlichiosis

Eisenmenger syndrome

Encephalitis

Essential thrombocythemia

Exercise headaches

External compression headaches

Eyestrain

Farsightedness

Fever

Don't be in a hurry to treat a low-grade fever — it's probably helping your body fight infection. High or lasting fevers may need medical attention.

Fibromuscular dysplasia

Fibromyalgia

Galactorrhea

Genital herpes

Giant cell arteritis

Glioma

Grand mal seizure

Hangovers

Hantavirus pulmonary syndrome

Headaches in children

Heat exhaustion

Heatstroke

Hemophilia

Histoplasmosis

HIV/AIDS

Hydrocele

Hyperglycemia in diabetes

Hyperparathyroidism

Hyponatremia

Hypoparathyroidism

Impacted wisdom teeth

Influenza (flu)

Intermittent explosive disorder

Intracranial hematoma

Iron deficiency anemia

Jellyfish stings

Lead poisoning

Legionnaires' disease

Listeria infection

Lung cancer

Lupus

Lyme disease

Malaria

Meningioma

Meningitis

Mental illness

Migraine

Mononucleosis

Myocarditis

Naegleria infection

Nasal polyps

Nasopharyngeal carcinoma

Nearsightedness

Paget's disease of bone

Panic attacks and panic disorder

Parvovirus infection

Pheochromocytoma

Pituitary tumors

Plague

Pneumonia

Polio

One of the most feared diseases of the 20th century, polio has been eradicated from the developed world but remains a threat in less developed nations.

Polycystic kidney disease

Polycythemia vera

Polymorphous light eruption

Post-concussion syndrome

Postpartum preeclampsia

Preeclampsia

Premenstrual syndrome (PMS)

Presbyopia

Prolactinoma

Pseudotumor cerebri

Pulmonary edema

Q fever

Rabies

Radiation sickness

Recurrent breast cancer

Respiratory syncytial virus (RSV)

Rocky Mountain spotted fever

Rubella

Salmonella infection

Scarlet fever

Scarlet fever is a bacterial infection that causes a rash, fever and sore throat and usually affects children and adolescents.

Serotonin syndrome

Shingles

Sleep apnea

Sleep apnea, central

Sleep apnea, obstructive

Smallpox

Staph infections

Strep throat

Stroke

Sunburn

Swine flu (H1N1 flu)

Takayasu's arteritis

Teen depression

Tension headache

Thrombocytosis

Thunderclap headaches

TMJ disorders

Tonsillitis

Toxic shock syndrome

Traumatic brain injury

While mild traumatic brain injury generally results in few long-term problems, more severe injury can cause several physical, emotional, behavioral, communication and cognitive problems.

Trichinosis

Tularemia

Typhoid fever

Valley fever

West Nile virus

Whiplash

Yellow fever

Zika virus disease

May 04, 2016