Five reasons why Egg Collection for IVF may be unsuccessful

Egg collection is a routine procedure performed at all IVF clinics. The IVF doctor successfully retrieves eggs from a significant number of follicles that most patients produce. Sometimes, doctors may be unable to find any eggs after the egg collection. There are primarily five reasons why this happens.

If the hCG injection isn’t administered at the proper time or more than 36 hours have elapsed after hCG administration, the follicle may rupture before egg collection. Ruptured follicles may release the eggs in the follicular fluid of the pouch of Douglas behind the uterus. At the time of egg retrieval for IVF, the doctor may not be able to find any intact follicles and thus may not obtain the eggs.

Secondly, technical problems are likely to happen during egg collection for IVF. Due to morbid obesity or adhesions in the pelvic region, the ovaries may become inaccessible to the vaginal ultrasound probe.  Ovaries may also stay hidden behind the uterus. For a doctor lacking experience in performing follicular puncture, this can become a major problem. Furthermore, the absence of general anaesthesia, especially when the patient has a low tolerance for pain compounds the problem. The patient has severe complaints of pain upon performing vaginal manipulations.

For other reasons read http://blog.drmalpani.com/2012/12/why-you-may-not-get-eggs-during-your.html