Tsawon zagayayen mahaifa ya bambanta ƙwarai daga mace zuwa wata, har ma daga wannan zagayar zuwa wata. Idan akwai tsawon haila, ovulation a hankali yana faruwa daga baya, ba tare da ya shafi haihuwa ba.

Don tunatarwa, sake zagayowar mahaifa ya ƙunshi matakai 3:

• lokacin follicular yana farawa a ranar farko ta haila. An yi masa alama ta balaga da yawa daga cikin kumburin mahaifa a ƙarƙashin tasirin homon mai ba da ƙarfi (FSH);
• yaduwa yayi daidai da korar wani oocyte ta babban follicle ovarian wanda ya kai ga balaga, a ƙarƙashin tasirin hawan luteinizing (LH);
• a lokacin lokacin luteal ko post-ovulatory, “ɓoyayyiyar harsashi” na ɓarɓarewar follicle ya juya zuwa cikin corpus luteum, wanda ke fara samar da sinadarin progesterone, wanda aikin sa shine shirya mahaifa don yuwuwar shigar da kwai. Idan babu hadi, wannan samarwa ta tsaya kuma endometrium ya ware daga bangon mahaifa: waɗannan dokoki ne.

Tsarin juyi na ovarian yana da matsakaicin kwanaki 28, tare da ovulation a rana ta 14. Duk da haka, tsawon zagayowar ya bambanta tsakanin mata, har ma tsakanin hawan keke a wasu mata. Lokaci na luteal yana da tsayayyen lokaci na kwanaki 14, idan ya kasance tsawon tsayi (fiye da kwanaki 30), lokacin follicular ya fi tsayi. Saboda haka ovulation yana faruwa daga baya a cikin sake zagayowar. Misali, don zagayowar kwanaki 32, ovulation a ka'ida za ta faru a ranar 18 na sake zagayowar (32-14 = 18).

Duk da haka, wannan lissafin ka'idar ne kawai. Idan aka yi doguwar hawan keke da / ko rashin daidaituwa, don inganta damar samun juna biyu, yana da kyau a gefe guda don tabbatar da cewa akwai kwayayen halittu, a daya bangaren kuma don tantance ranar sa bisa dogaro. Akwai hanyoyi daban -daban don wannan wanda mace za ta iya yi ita kaɗai, a gida: ƙanƙanin zafin jiki, lura da ƙwaryar mahaifa, hanyar haɗin gwiwa (ƙuƙwalwar zafin jiki da lura da ƙuƙwalwar mahaifa ko kuma buɗewar mahaifa) ko gwajin ovulation. Na ƙarshen, dangane da ganowa a cikin fitsari na hauhawar LH, kasancewa mafi amintacce don saduwa da ovulation.

Ba mu san musabbabin jinkirin ovulation ba. Wani lokaci muna magana game da “ƙwanƙwasa” ovaries ba tare da wannan ya zama cuta ba. Hakanan mun san cewa abubuwa daban-daban na iya yin tasiri kan tsawon tsararraki ta hanyar yin tasiri akan yanayin hypothalamic-pituitary a asalin ɓoyayyen hormone na FS da LH: ƙarancin abinci, girgizawar zuciya, matsananciyar damuwa, asarar nauyi kwatsam, rashin abinci mai nauyi, rashin ƙarfi horo na jiki.

Bayan dakatar da maganin hana haihuwa, yana kuma zama ruwan dare gama gari ya yi tsawo da / ko wanda bai dace ba. A huta na tsawon lokacin hana haihuwa, ovaries na iya ɗaukar ɗan lokaci kaɗan don dawo da aikin al'ada.

Late ovulation ba dole ba ne ya zama ovulation mara kyau. Nazarin Mutanen Espanya da aka buga a cikin 2014 a cikin Jaridar Turai ta haihuwa da likitan mata, har ma yana nuna akasin haka (1). Har ila yau masu binciken sun yi nazari kan hanyoyin mahaifa na kusan mata 2000 da suka ba da gudummawar oocytes, da yawan ciki a cikin masu karɓa. Sakamako: Ba da gudummawar kwai daga mata masu dogayen hawan keke yana da alaƙa da mafi girman yawan ciki a cikin masu karɓa, yana ba da shawarar mafi kyawun oocytes.

A daya bangaren kuma, tsawon hawan keke, kadan za su kasance a cikin shekarar. Sanin cewa taga haihuwa yana ɗaukar kwanaki 4 zuwa 5 ne kacal a kowane zagayowar kuma cewa damar yin ciki yana kan matsakaita 15 zuwa 20% a kowane juyi don ma'aurata masu haihuwa suna yin jima'i a mafi kyawun lokacin sake zagayowar (2), a cikin abin da ya faru na tsawon hawan keke, saboda haka za a rage haɗarin samun ciki sosai.

Idan an keɓe hawan keke alhali kuwa a baya sun kasance matsakaicin matsakaici (kwanaki 28), yana da kyau a tuntuɓi don gano yuwuwar matsalar hormonal.

Wani lokaci tsawon lokaci da / ko rashin daidaituwa na iya zama ɗaya daga cikin alamun, a cikin hoto na gaba ɗaya, na polycystic ovary syndrome (PCOS) ko dystrophy ovarian, cututtukan endocrine wanda ke shafar 5 zuwa 10% na mata masu haihuwa. hayayyafa. PCOS ba koyaushe ke haifar da rashin haihuwa ba, amma shine sanadin rashin haihuwa na mace.

A kowane hali, ba tare da la'akari da tsawon lokacin sake zagayowar ba, yana da kyau a tuntuɓi bayan watanni 12 zuwa 18 na gwajin jaririn da bai yi nasara ba. Bayan shekaru 38, an rage wannan lokacin zuwa watanni 6 saboda yawan haihuwa yana raguwa sosai bayan wannan shekarun.