Hymen

The hymen is a thin piece of mucosal tissue that surrounds or partially covers the external vaginal opening. It forms part of the vulva, or external genitalia, and is similar in structure to the vagina.…

Hyperthyroidism

  Hyperthyroidism is the condition that occurs due to excessive production of thyroid hormones by the thyroid gland.Signs and symptoms vary between people and may include irritability, muscle weakness, sleeping problems, a fast heartbeat, heat…

Hypogonadotropic Hypogonadism

Hypogonadotropic hypogonadism (HH), is due to problems with either the hypothalamus or pituitary gland affecting the hypothalamic-pituitary-gonadal axis (HPG axis). … The production of sex steroids forms a negative feedback loop acting on both the…

Hypothalamus

The hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. The hypothalamus controls body temperature, hunger, important aspects of parenting and attachment behaviours, thirst, fatigue,…

Hysterosalpingography HSG

Hysterosalpingography (HSG), also known as uterosalpingography, is a radiologic procedure to investigate the shape of the uterine cavity and the shape and patency of the fallopian tubes. This means it is a special x-ray using dye…