Symptoms With LH Surge

During child-bearing years, most women experience a luteinizing hormone (LH) surge every month. The LH surge is an indicator of ovulation.

LH Surge Definition

• In human females, an egg is released each month from the ovary to travel through the fallopian tubes, resulting in menstruation. LHs from the pituitary gland stimulate the ovaries to release the egg. The release of these hormones is known as the LH surge (See References 1).

Signs and Symptoms of LH Surge

• The LH surge, an indicator of ovulation, happens on approximately day 14 of the menstrual cycle. Signs and symptoms of impending ovulation can include mild abdominal cramping, increase in basal body temperature, and an increase in clear, slippery vaginal secretions. These symptoms disappear after ovulation occurs (See References 2).

Importance of LH Surge

• The LH surge is necessary to detect when planning a pregnancy. Although possible, pregnancy after monthly ovulation is rare (See References 2)

Reasons for Non-Occurence of LH Surge

• The LH surge diminishes and eventually disappears during pre- and post-menopause. Consult with a medical professional if you have difficulties or questions regarding your reproductive health.

Detection Methods of LH Surge

• Over the counter LH surge detection kits are available at most pharmacies. For purposes of artificial insemination, medical professionals use a transvaginal ultrasound to monitor ovaries and detect egg growth (See References 3).