I

• Impetigo - a contagious, common bacterial skin infection that affects the superficial layers of the skin.
• Impotence - consistent inability to achieve or maintain an erection of the penis necessary to have sexual intercourse.
• Infertility, Female - is generally considered to be the failure to conceive after one year of unprotected sexual activity.
• Infertility, male - refers to infertility in male humans.
• Influenza - a common, contagious respiratory infection caused by a virus.
• Insomnia - Sleep disturbance that includes difficulty in falling asleep, difficulty remaining asleep, intermittent wakefulness, early morning awakening or a combination of these.
• Interstitial cystitis - an inflammation of the bladder wall.
• Irritable bowel syndrome - An irritative and inflammatory disorder of the intestine. It is not contagious, inherited or cancerous. It is twice as likely to affect women as men.
• Idiopathic hypertrophic subaortic stenosis (ihss) - An abnormal growth of muscle fibers on the heart muscle, often causing a thickened septum.
• Incontinence, stress - Lack of control of bladder (urinary) function.
• Indigestion - Improper digestion, causing symptoms such as heartburn, nausea, bloating and gas.
• Insect bites and stings - Injuries that can cause mild pain, swelling and itching. In rare cases, venom released in the stings of bees, yellow jackets, hornets, wasps and fire ants triggers a life-threatening condition known as anaphylactic shock.

J

• Joint Pain - can be caused by many types of injuries or conditions.
• Jaw Pain - Pain in or around the upper or lower jaws.
• Jaccoud Arthropathy - A rare form of chronic arthritis often associated with acute rheumatic fever or systemic lupus erythematosus.
• Jock Itch - A common fungal skin infection that may affect the skin of the genitals, inner thighs and buttocks.

K

• Keratitis - Inflammation of the cornea (the clear central portion of the eye that covers the pupil).
• Kidney Infection, Acute - a non-contagious bacterial infection of the kidneys (kidneys filter waste material from the bloodstream and produce urine).
• Kidney Stones - Small, solid particles that form in one or both kidneys and sometimes travel into the ureter.
• Kidney transplantation - is a surgical procedure in which an individual whose own kidneys have failed receives a new kidney to take over the task of cleansing the blood of waste materials.
• Kaposi's sarcoma - A form of cancer in which malignant cells form in the tissues of the mouth, nose and anus. Formerly rare, KS has become a marker for the development of AIDS.
• Keloids - Raised, red scars at a wound site that result from uncontrolled collagen production and usually extend beyond wound boundaries.
• Keratoses, seborrheic - Raised growths on the skin that may appear individually or in clusters of dozens.
• Keratosis, actinic - Small, rough spots on skin that has been chronically exposed to the sun. They are commonly found on the face, scalp, back of the neck, upper chest, forearm and back of the hand.
• Kidney infection - A bacterial infection in one or both kidneys. It usually ascends from the genital or urinary regions.

Drugs starting with I-K

• Ibuprofen - is a nonsteroidal anti-inflammatory drug (NSAID), which relieves pain and swelling.
• Isotretinoin - used topically for the treatment of acne. It may also be given by mouth, under the supervision of a hospital specialist, for severe cases of acne that are unresponsive to antibiotics.