Where To Find The Nub On An Ultrasound

The nub theory 12 week ultrasound is an great tool for many soon-to-be parents to see the defined gender markers of their baby before the genitalia is fully formed. If its in between -- in the grey area -- then the nub theory doesnt predict babys sex.

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The side view or profile of the baby in an ultrasound image is known as the sagittal plane.

Where to find the nub on an ultrasound. You can see the boy genitalia on the left picture and the renowned three white lines on the right a key indicator that youre expecting a girl. The nub angle is visible in the profile view of the baby. Sagittal view is ideal for nub and skull predictions.

Now were not sure what 30 degrees looks like on an ultrasound. Note the presence or absence of a penis at 18-20 weeks. Advances in ultrasound technology in recent years have led us to be able to accurately predict the sex of the baby by analyzing sonograms from 10 weeks onwards based on the.

That sounds pretty dang good however you have to keep the size of your baby and the development into consideration. If you precisely measured the angle of the tubercle compared to your babys spine an angle of 10 degrees or less supposedly indicates youre having a girl according to nub theory. How To Find Nub On Ultrasound.

The type of scanning plane used for most pregnancy ultrasounds from weeks 12 onwards is sagittal As a general rule in the sagittal plane the top of the ultrasound image is the anterior side and the bottom is the posterior side. It was confirmed GIRL by ultrasound at 19 weeks and again at 20 weeks. The developing female nub varies at different gestations the nub here is parallel to her spine it also sits below 30 degrees and you will also find her nub hangs directly off her rump.

US tech said based on nub theory she was 80 babys a girl. The baby is a female if the nub is parallel to the spine or at an angle. The term nub theory came from the analysis of the Nub A Nub is also known as a genital tubercle ie.

If its barely raised level or aiming downward its in the girl range. Look for a visible nub. The angle of the nub is compared to the babys lower spine.

The easiest way is to look for a penis. Based upon studies the accuracy increases with gestational age. If you see one theres an excellent chance the sex is male.

An ultrasound scan is necessary to determine the sex of your baby using the nub theory in the first trimester. But if you were to draw a straight line on the ultrasound along the bottom half of your babys spine near their bottom you can see whether the nub is pointing clearly up and away from that line or not. A nub with a pronounced lift is in the boy range.

According to the nub theory the baby is a male if the nub points to an angle greater than 30 degrees against the spine. Nub theory on the other hand provides an accurate gender prediction in roughly 9 out of 10 cases. So even if youre still wondering Whats a nub in the first place Our experts know everything necessary to use your early ultrasound to provide you with an accurate customized prediction of your babys gender.

Due to a server move some uploaded images are temporarily missing. The nub is at a much steeper angle upwards from the spine indicating that this could be a baby boy. Ask the technician to point directly to the nub and show you the angle.

Most nubsessors guessed girl including charliecats but there were a few boy votes too because of the slight angle up. From there you would search for the nub or a small protrusion in between where your babys legs will form. You could find out at your second ultrasound.

How accurate is the Nub Theory exactly. In step 1 you will need to draw a reference baseline on the scan to apply the nub theory. Though again its far from foolproof especially when performed by someone with no scientific or medical background.

You should be able to see a lower line in the image at the lowest part of. A full long line clitoris will image and. At 11 wks the accuracy is only approx.

If you prefer to simply look at the nub on an ultrasound image check to. Attached is my nub shot from 11 weeks 6 days. Typically youll have 3 ultrasounds during pregnancy.

Heres my nub shot at just shy of 12 weeks. The nub theory is a medical method used by professional healthcare physicians to get an early prediction of your babys gender from an ultrasound. To actually apply nub theory to your babys ultrasound you need to catch them in a clear profile so the length of their spine is visible horizontally.

In the diagram the horizontal line 0 is the baseline babys lower spine. Im not super great at the nub theory guess but your pic kind of looks like my babes nub. Hi allHad my first scan today Im 13 weeks exactly Ive heard of this nub theory and know its not proven to be accurate or anything but wondered if Create an account to join the conversation Have your say get notified on what matters to you and see fewer ads.

To the unpracticed eye sometimes the nub -- like any feature in an ultrasound photo -- is easy to spot and sometimes it can be tricky. If youre desperate to find out the sex of your baby most people dont find out until their 20-week anomaly scan. I got my NextGen results this past Friday and its confirmed baby girl.

The nub will point down at the very tip towards the babys rump and you will notice the nub hangs over the rump too. According to the Nub Theory you dont have to wait those 18 long weeks. Youll have to let us know when you find out.

This is the view of babys bottom used for gender determination in the 2nd trimester and even though you can see the nub in this view you cannot see the nub angle. The following image is a perfect boy nub shot at 14 weeks gestation. 68 while at 14 weeks it is 98 accurate.

Using the sagittal image of the scan first determine the base spine of the baby. We can tell the sex of the baby at the 12 week scan by assessing the direction of the nub. Dating ultrasound While not always required dating ultrasound appointments occur between week 6 and week 9 of pregnancy.

One recent study found that the ultrasound technician correctly predicted a babys gender 98 percent of the time. Once you reach the 18-20 week ultrasound it should be a lot easier to predict sex.

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