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A 39-year-old member asked:

When does ovulation occur after lh surge?

1 doctor answer1 doctor weighed in
Dr. Michael Traub
Fertility Medicine 19 years experience
1-2 days later: So the surge can last for about 36 hours from beginning to end. Ovulation usually occurs about 1-2 days after surge and the eggnormally lasts there 102 days.

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NY
A 32-year-old female asked:

Can ovulation occur without an LH surge?

1 doctor answer1 doctor weighed in
Dr. Mazin Abdullah
Fertility Medicine 15 years experience
No: Lh must surge for ovulation to occur. But sometimes it is difficult to pick up the surge on an ovulation predictor kit if not time right.
Moorhead, MN
A 27-year-old female asked:

What's the likelihood of having an LH surge but not ovulating?

1 doctor answer1 doctor weighed in
Dr. Gerard Honore
Fertility Medicine 29 years experience
Unknown, but low: The complete answer: it is uncommon to not ovulate after detecting a TRUE LH surge. This was called a luteininzed unruptured follicle (LUF) and we are not certain how often it happens, most estimates are around 10%. Here's the trick though: many women get false LH readings on OPK, so obviously you would NOT expect ovulation to follow these. Good wishes.
A 38-year-old female asked:

Does an LH surge drop before or after ovulation?

2 doctor answers2 doctors weighed in
Dr. Edward Ramirez
Fertility Medicine 36 years experience
After: There are two steps prior to ovulation: (1) your brain (hypothalamus and pituitary) sends a signal to the ovaries to stimulate the growth of a follicle and maturation of the egg within. (2) the designated follicle grows, and the egg matures, until it reaches a critical size, whereby there is an lh surge to induce ovulation.

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Last updated Jun 9, 2015

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