H

Hairband incision - a surgical cut in the scalp crossing from ear to ear, used in a coronal browlift

Hair graft - a thin strip of hair-bearing scalp is removed, separated into pieces of 1 to 5 hair follicles, and then implanted into hairless areas

Hair transplant - see "hair graft"

Hair follicle - a deep, narrow canal with its enclosed developing hair

Halitosis - condition of having bad breath

Halo - in ophthalmology, a possible complication of vision correction surgery in which rings are seen around lights

Halothane - a widely used inhalation anesthetic

Helix - the folded part of cartilage around the top of the ear

Hemangioma - a proliferative vascular lesion that originates from blood vessels

Hematoma - a localized mass of blood under the skin; a common postoperative occurence that often resolves on its own or can be surgically corrected

Hemoglobin - the oxygen-bearing component of red blood cells that gives the blood its color

Hemorrhage - heavy, uncontrolled bleeding

Herpes virus - the virus responsible for cold sores

Hirsutism - condition of excess bodily hair

Hooding - an abnormal appearance of the upper eyelid caused by excessive sagging of the eyelid skin

Hordeolum - a stye or pimple on the eyelid

Hormone - a chemical substance produced by glands that travels through the bloodstream and affects other tissues

Horny layer - the topmost layer of the epidermis; also called the stratum corneum

Humectant - a substance used to obtain a moistening effect

Hydroquinone - a chemical bleaching agent used in skin preparations for treatment of excessive pigmentation

Hyperbaric Oxygen Therapy (HBOT) - increased oxygen pressure in closed container used to treat decompression sickness, infection, and other states of low oxygen in the tissues

Hyperesthesia - condition of being abnormally sensitive; can occur after bruising or injury to a nerve

Hyperhidrosis - profuse sweating

Hyperopia - farsightedness

Hyperopia - the state of being far-sighted

Hyperplasia - an increase in the number of cells

Hyperpigmentation - darkening of the skin through overproduction of melanin

Hypertension - high blood pressure

Hypertrophic scar - a thickened, raised, or elevated scar that remains within the boundaries of the initial injury or incision

Hypnosis - an artificially induced state of sleep, such as with general anesthesia

Hypoallergenic - designed to reduce the chance of allergic reaction

Hypopigmentation - lightening of the skin caused by underproduction of or damage to the melanin

Hypoxia - a decrease below normal levels of oxygen