Influenza

Influenza is a viral infection that attacks your respiratory system — your nose, throat and lungs. Influenza, commonly called the flu, is not the same as stomach “flu” viruses that cause diarrhea and vomiting. For most people, influenza resolves on its own, but sometimes, influenza and its complications can be deadly. People at higher risk […]

Impetigo

Impetigo is a highly contagious skin infection that mainly affects infants and children. Impetigo usually appears as red sores on the face, especially around a child’s nose and mouth. The sores burst and develop honey-colored crusts. Symptoms Classic signs and symptoms of impetigo involve red sores that quickly rupture, ooze for a few days and […]

Hypothyroidism

Hypothyroidism (underactive thyroid) is a condition in which your thyroid gland doesn’t produce enough of certain important hormones. Women, especially those older than age 60, are more likely to have hypothyroidism. Symptoms Hypothyroidism signs and symptom may include: Fatigue Increased sensitivity to cold Constipation Dry skin Weight gain Puffy face Hoarseness Muscle weakness Elevated blood […]

Hyperthyroidism

Hyperthyroidism (overactive thyroid) is a condition in which your thyroid gland produces too much of the hormone thyroxine. Hyperthyroidism can accelerate your body’s metabolism significantly, causing sudden weight loss, a rapid or irregular heartbeat, sweating, and nervousness or irritability. Symptoms Hyperthyroidism can mimic other health problems, which may make it difficult for your doctor to […]

HIV AIDS

Acquired immunodeficiency syndrome (AIDS) is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV). By damaging your immune system, HIV interferes with your body’s ability to fight the organisms that cause disease. Symptoms The symptoms of HIV and AIDS vary, depending on the phase of infection. Primary infection (Acute HIV) The majority […]

Heart Attack

A heart attack occurs when the flow of blood to the heart is blocked, most often by a build-up of fat, cholesterol and other substances, which form a plaque in the arteries that feed the heart (coronary arteries). The interrupted blood flow can damage or destroy part of the heart muscle. A heart attack, also […]

Hemophilia

Hemophilia is a rare disorder in which your blood doesn’t clot normally because it lacks sufficient blood-clotting proteins (clotting factors). If you have hemophilia, you may bleed for a longer time after an injury than you would if your blood clotted normally. Symptoms Signs and symptoms of spontaneous bleeding include: Unexplained and excessive bleeding from […]

Gout

Gout is characterized by sudden, severe attacks of pain, redness and tenderness in joints, often the joint at the base of the big toe. Gout — a complex form of arthritis — can affect anyone. Men are more likely to get gout, but women become increasingly susceptible to gout after menopause. Symptoms The signs and […]

Gonorrhea

Gonorrhea is an infection caused by a sexually transmitted bacterium that can infect both males and females. Gonorrhea most often affects the urethra, rectum or throat. In females, gonorrhea can also infect the cervix. Gonorrhea is most commonly spread during sex. But babies can be infected during childbirth if their mothers are infected. In babies, […]

Goiter

Goiter is an abnormal enlargement of your thyroid gland. Your thyroid is a butterfly-shaped gland located at the base of your neck just below your Adam’s apple. Although goiters are usually painless, a large goiter can cause a cough and make it difficult for you to swallow or breathe. The most common cause of goiter […]