The following glossary is adapted from the glossary provided by Planned Parenthood at https://www.plannedparenthood.org/learn/glossary.
HBV or hepatitis B virus: An infection that can be sexually transmitted and may cause severe liver disease and death.
Herpes: An infection of herpes simplex virus types 1 or 2 in the area of the anus, buttocks, cervix, mouth, penis, vagina, or vulva. Very often there are no symptoms, while the most common symptom is a cluster of blistery sores.
Herpes simplex virus or HSV: see herpes.
HIV or human immunodeficiency virus: An infection that weakens the body’s ability to fight disease and can cause AIDS.
Honeymoon cystitis: A bladder infection (UTI) in a woman that is caused by frequent vaginal intercourse — for example, during a honeymoon. Clean hands and nails, as well as urination after sex may help to prevent this UTI.
Hormonal contraceptives: Prescription methods of birth control that use hormones to prevent pregnancy. These include the implant, the Mirena IUD, the patch, the pill, the ring, and the shot.
Hormones: Chemicals that cause changes in our bodies and influence how glands and organs work.
HPV or human papilloma virus: Any of more than 100 different types of infection, some of which may cause genital warts. Others may cause cancer of the anus, cervix, penis, throat, or vulva.
HSV: See herpes.
Human immunodeficiency virus: See HIV.
Human papilloma virus: See HPV.
Hydrocele: An accumulation of fluid in a testicle.
Hymen: A thin fleshy tissue that stretches across part of the opening to the vagina.
Hypothalamus: A small area in the brain that controls sexual response and other basic functions.
Hysterectomy: The surgical removal of the uterus.
Hysteroscope: A long, thin tool that lets a health care provider see inside a woman’s uterus.
Hysteroscopic tubal sterilization: A non-incision method for permanent birth control in which microinserts are placed in the fallopian tubes, causing scar tissue to grow and block the tubes. The brand name of the microinserts is “Essure.”