Twin Diagnostic

When we say twins, there can be two types of them!

There are two ways, how twins can be formed.
No 1

These are called Fraternal twins
These twins are not genetically similar as they are from two genetically
different gametes.
They can be both
boys
Or both girls
Or a girl and a boy.

These twins act as two entities
They each have there own placenta and amniotic sacs in the uterus.
Hence these are called Dichorionic twins

No 2
The zygote splits into two, after fertilization

These are called Identical twins
These twins are genetically similar as they are from
the same gametes.
The twins are of always
Of same sex.

If the splitting happens evenly and quickly, two separate placentas will be formed
But, that is not always the case

If the splitting does not happen evenly and quickly, then the placenta will be shared
Sharing a single placenta can be dangerous,
as the resources can be unevenly distributed
These
Are
called
Monochorionic
twins

Monochorionic twins
These twins can have many problems related with resource sharing and blood transfusions

Diagnostic – Ultrasound
The 1st trimester is the best time for determining
Between Monochorionic & Dichorionic Twin Pregnancy

It is very critical to follow closely with Ultrasound to avoid any complication

To summarise :

Questions :
1. what is the Between Monochorionic & Dichorionic Twin Pregnancy ?
2. who are called Fraternal twins ?
3. who are called Identical twins ?
4. same sex twins can only be seen in ?
5. who Between Monochorionic & Dichorionic Twins have a chance of complications ?