Photo of Linea Nigra
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Photo of Linea Nigra

Linea nigra is a dark vertical line running from pubis to sternum or navel on pregnant abdomen, resulting from melanocyte-stimulating hormone increase darkening the normally faint linea alba, more pronounced…
IVF
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IVF

In vitro fertilization bypasses natural barriers by retrieving mature eggs from stimulated ovaries, fertilizing with sperm in lab—sometimes via ICSI injection—culturing embryos to blastocyst, then transferring to prepared uterus, with…
Implantation
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Implantation

Implantation occurs about a week after fertilization when the blastocyst, having hatched from zona pellucida, adheres to endometrial lining primed by progesterone, with trophoblast cells invading to establish placental connections.…