1. Health

Infertility Glossary - Definitions and Terms for Letters L - O

As you go through infertility testing and treatment, you’ll probably come across a number of words that you’ve never heard before. Knowing the terminology can help you ask better questions when speaking to your doctor, and help you as you research the topic on your own. Get terms for words starting with letters L through O here.

Luteal Phase

What is the luteal phase, and how long on average is the luteal phase?

Luteinizing Hormone (LH)

What is LH (Luteinizing Hormone)?

Male Factor Infertility

What is Male Factor Infertility?

Menstruation

What is menstruation, and what happens during menstruation? Learn about menstruation in this definition.

Monozygotic Twins

What are monozygotic twins? Learn what you need to know here.

Necrozoospermia

What does necrozoospermia mean? Find out here.

Oligospermia

What is Oligospermia?

Oocyte

What is an oocyte? Learn what an oocyte is in this definition.

Ovarian Cyst

What is a cyst? What is an ovarian cyst? Learn more about what a cyst is here.

Ovarian Hyperstimulation Syndrome (OHSS)

What is ovarian hyperstimulation syndrome (OHSS)? What causes ovarian hyperstimulation syndrome, and what are the symptoms? Learn more about ovarian hyperstimulation syndrome in this definition.

Ovary

What is an ovary? How many eggs are women born with? Learn more about the ovary, including the hormones secreted by the ovaries, in this definition.

Ovulation Predictor Kits (OPK))

What is an ovulation predictor kit (OPK)?

Ovulation

What is ovulation? How does ovulation happen? Learn more about ovulation in this definition.

Ovum

What is an ovum? Learn more in this definition.

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