Controlled ovarian hyperstimulation therapy

What is Controlled Ovarian Hyperstimulation Therapy (COH)?

Controlled Ovarian Hyperstimulation Therapy (COH) is a fertility treatment that is used to stimulate the ovaries so that the woman can produce multiple eggs in one cycle. It is used in conjunction with assisted reproductive technologies such as in vitro fertilization (IVF) or intrauterine insemination (IUI).

COH involves controlling the ovaries using fertility hormones, such as follicle-stimulating hormone (FSH). FSH helps to stimulate the development of multiple follicles, which are the sacs in the ovaries that contain eggs. When multiple follicles are mature enough, the eggs can be retrieved and used for IVF or IUI.

What are the Benefits of Controlled Ovarian Hyperstimulation?

  • Increases the chances of having a successful embryo implantation
  • Increases the success rate of in vitro fertilization (IVF) or intrauterine insemination (IUI)
  • Improves egg quality
  • Reduces the risk of multiple births
  • Decreases the time to pregnancy

What are the Possible Complications of Controlled Ovarian Hyperstimulation?

  • Ovarian Hyperstimulation Syndrome (OHSS)
  • Ectopic pregnancy
  • Complications with anesthesia
  • Ovarian torsion
  • Infections
  • Bruising and swelling at the injection site
  • Blood clots


Controlled Ovarian Hyperstimulation Therapy (COH) is an effective treatment for infertility. It improves the odds of successful conception and reduces the time to pregnancy. However, like any other medical procedure, it also has risks and complications. Therefore, it is important to consult with a specialist before undergoing the treatment.