do twins share a placenta or have one each?

Identical twins share a placenta, while the fraternal twins have differnt placentas.

2007-02-09 07:16:41 · answer #1 · answered by Laughing Libra 6 · 4⤊ 2⤋

Identical twins share a placenta whereas fraternal twins have seperate placentas

2007-02-12 00:50:15 · answer #2 · answered by JULIE T 1 · 0⤊ 0⤋

People, before you start spurting your infinate knowledge on subjects, do some research. Twins can share a placenta or have two seperate ones. Approximately 20-30% of identicals have seperate placentas. Also, not all fraternals have seperate placentas. New research has proven for the very first time that fraternal twins can share one placenta.
Also, for the person that said that identical twins come from one egg and two sperms, that is incorrect. Identical twins occur when one egg (fertilized by ONE sperm) splits. Check your facts people.
20-30%

2007-02-09 07:25:05 · answer #3 · answered by duckygrl21 5 · 2⤊ 2⤋

some do. It many times leads to atypical boost types and infrequently death simply by uneven nutrition and twine entanglement. same twins are plenty extra probably to share a placenta. same twins with one placenta could have separate amniotic sacs or be contained in only one sac. besides the indisputable fact that, in ANY twin being pregnant, one placenta can overlie the different ensuing in fused placentas. sometimes, even docs can no longer tell if there is better than one placenta, even after start and visually examining it. further attempting out could make sparkling.

2016-09-28 21:28:10 · answer #4 · answered by kurihara 4 · 0⤊ 0⤋

Depends on the twins. In general, if you have identical twins, then they are sharing a single placenta. If you have fraternal twins, then they each have one of their own.

The placenta forms after implantation. If you have one egg that implants and then splits, you get identical twins. If two eggs implant, then you will have two separate placentas.

HOWEVER, there have been cases in which fraternal twins have indeed shared a placenta. If you are interested in this, the link is http://content.nejm.org/cgi/content/short/349/2/154

2007-02-09 07:20:16 · answer #5 · answered by Katie B 2 · 2⤊ 1⤋

Identical twins share a placenta, but fraternal twins each have their own.

2007-02-09 07:19:44 · answer #6 · answered by CelebrateMeHome 6 · 1⤊ 2⤋

Depends...identical twins share a placenta(one egg two sperms)...fraternal twins (2 eggs) have seperate placenta's

2007-02-09 07:16:52 · answer #7 · answered by mommy_2_liam 7 · 3⤊ 2⤋

Identical twins share a placenta, while non-identical twins have one each.

2007-02-09 07:18:39 · answer #8 · answered by snow_leopard_33 1 · 2⤊ 2⤋

identicals shares placenta

2007-02-09 07:25:53 · answer #9 · answered by \ 5 · 0⤊ 1⤋

if they're identical they have the same placenta cause the sperm splits into 2 when fertilising the egg.

non identical are 2 seperate sperm that fertilised the egg so they will have they're own placenta, and grow in their own bag of fluid. although they're in ur belly at the same time they grow separatley

2007-02-09 07:37:44 · answer #10 · answered by Anonymous · 0⤊ 1⤋

do twins share a placenta or have one each?

13 answers