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Doctor insights on: Can Placenta Previa Cause Birth Defects

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Dr. Nikolaos Zacharias
841 Doctors shared insights

Congenital Abnormalities (Definition)

Abnormalites that are present at birth. Also known as birth defects. For example- cleft palate is a congenital abnormalities. Another example congenital heart disease is the presence of a ...Read more


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I had placenta previa with my 2nd baby its been 18 months since the birth im now useing implanon for contreception. My period. Blood smells bad?

I had placenta previa with my 2nd baby its been 18 months since the birth im now useing implanon for contreception. My period. Blood smells bad?

Bacterial vaginosis: Vaginal odor would be unrelated to your delivery 18 months ago and unrelated to implanon. This sounds like infection and most likely bacterial vaginosis. Blood tends to make the odor worse with this infection. Treatment is antibiotics so you will need to see your obgyn for testing and confirmation. Read more

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Why does placenta previa cause cramping and bleeding?

Why does placenta previa cause cramping and bleeding?

Placenta previa: Usually bleeding associated with placenta previa is painless. Rarely, if there is separation of placenta and blood is collected retroplacentally, it can be painful. Read more

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Can marginal placenta previa cause placental abruption? What are the statistics on marginal previa moving after 20 weeks?

Can marginal placenta previa cause placental abruption? What are the statistics on marginal previa moving after 20 weeks?

Cervix and placenta: Will move apart
as a balloon expands, (uterus), points on the balloon move apart, this will likely occur as the uterus grows, if no bleeding, little risk of harm. Ask your doctor to be sure.
Previa can create a type of partial abruption, along the edge of the attachment. Read more

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How does placenta previa cause preterm delivery?

How does placenta previa cause preterm delivery?

Bleeding and Cntrxns: Previa: Placenta overlies the cervix/birth canal. Gr 1 means placenta is close, Gr 4 means it's directly overlying/blocking the baby's exit -- high chance of preterm labor & bleeding; you'd need a C/S at 36-37wks. More common in woman w/ hx of C/S & smoking. Not much you can do but wait. If dx'ed early, the uterus still grows/stretches and a placenta can migrate away even in 3rd tri. Follow w/ US. Read more

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Had inc. Placenta previa at 16 weeks, moved up around 21 wks (3cm+) now at almost 32 wks u/s showing 1.5cm fr cervix. Why did it move down again?

Had inc. Placenta previa at 16 weeks, moved up around 21 wks (3cm+) now at almost 32 wks u/s showing 1.5cm fr cervix. Why did it move down again?

Doesn’t move: The placenta does not actually move. It is attached to the uterus. As the uterus grows the placenta can be pulled safely away from the cervix. In some cases it does not. It just depends on where the placenta is attached. In general it needs to be more than 2 cm from the cervix to permit vaginal delivery Read more

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What can you tell me about placenta previa?

Attached over cervix: Placenta previa is when the placenta attaches low inside the uterus, near theopening of the birth canal/cervix. This can cause problems during the birth process because when the cervix starts dilating it could tear the blood vessels in the placenta, depriving the baby of blood and making mom lose too much blood. To be safe, many ob's recommend a c-section instead of vaginal birth. Read more

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I was told I have placenta previa. Now what do I do?

I was told I have placenta previa. Now what do I do?

Listen to your Doc: If it's early in your first trimester, usuallly not much different. In your late second or third trimester, listen to your doc. They'll prescribe rest, definitely to the hospital if you have any bleeding or cramping, and serial ultrasounds to see if the cervix has cleared. If it doesn't clear the cervix, a c-section is planned for delivery. Steroids may be given to help if you need early del. Read more

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Sex with marginal placenta previa? Is it really necessary to abstain?

Sex with marginal placenta previa? Is it really necessary to abstain?

Yes: With any previa, the placements is near the cervix. Until your MD clears you, nothing in the vagina. The good news is, a marginal previa usually moves as the uterus gets bigger. Read more

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How to treat placenta previa marginalis grade 1?

How to treat placenta previa marginalis grade 1?

No treatment: Have to see if it resolves, if it does not then u will need a csection cannot deliver vaginally if u have that please discuss with your ob. Read more

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Does smoking increase the risk for placenta previa?

Yes: Previa: Placenta overlies the cervix/birth canal. Gr 1 means placenta is close, Gr 4 means it's directly overlying/blocking the baby's exit -- high chance of preterm labor & bleeding; you'd need a C/S at 36-37wks. More common in woman w/ hx of C/S & smoking. Not much you can do but wait. If dx'ed early, the uterus still grows/stretches and a placenta can migrate away even in 3rd tri. Follow w/ US. Read more

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If I have placenta previa, when am I most likely to bleed?

If I have placenta previa, when am I most likely to bleed?

Third trimester.: Most cases of placenta previa wither resolve or start bleeding by the third trimester (>28 weeks). Avoid all ssris, aspirin-like drugs (nsaids, motrin, aleve, advil) and only take regular tylenol (acetaminophen) during pregnancy. Avoid intercourse and heavy lifting/exercise until delivery or resolution of your placenta previa. Serial ultrasounds with an experienced maternal-fetal medicine specialist are warranted! Read more

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What congenital anomolies are associated with placenta previa?

What congenital anomolies are associated with placenta previa?

Nothing specific: In 3 deades of pediatrics and much of that dealing with birth defects, I know of no anomaly that is linked to placenta previa. The selection of an implantation site for the embryo and development of the placenta in a previa location appears to be random. Read more

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Is it abruptio or placenta previa that bleeds when placenta is low?

May be both: A previa is usually painless bleeding when the cervix is changing (dilating) causing bleeding from torn vessels being sheared off. It is a type of abruption although any bleeding from a detaching placenta is strictly called an abruption. These are usually away from the cervix and can be associated with cramping, pain, or heavy bleeding. If you have a previa, let your doc know if you bleed. Read more

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Posteria placenta @9weeks- then placenta previa. @ 17 weeks? Will it move again?

Posteria placenta @9weeks- then placenta previa. @ 17 weeks? Will it move again?

Yes, possible!: Previa: Placenta overlies the cervix/birth canal. Gr 1 means placenta is close, Gr 4 means it's directly overlying/blocking the baby's exit -- high chance of preterm labor & bleeding; you'd need a C/S at 36-37wks. More common in woman w/ hx of C/S & smoking. Not much you can do but wait. If dx'ed early, the uterus still grows/stretches and a placenta can migrate away even in 3rd tri. Follow w/ US. Read more

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Can you have sex with a placenta previa?

Can you have sex with a placenta previa?

Be cautious: No! A placenta previa can be dangerous and result in heavy bleeding. Anything that could disturb the previa should be avoided, like sex, fingers, really anything in the vagina. A previa can resolve over many weeks, so make sure your doctor is checking to see if it is still there. Until then, I would wait. Good luck! Dr S Read more

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I have placenta previa but can my boyfriend softly put his penis in my vagina?

I have placenta previa but can my boyfriend softly put his penis in my vagina?

Dangerous: You can endanger your pregnancy by any sexual stimulation. Let him masturbate or you can perform oral sex or hand job for him if he needs help. Read more

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Is it safe to engage in sexual activity without intercourse if I have placenta previa?

Yes: You can engage in sexual activity as long as nothing is placed inside the vagina to avoid disrupting the placenta and causing bleeding. Finding other ways to stay intimate with your partner is normal and healthy. Read more

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Hi I have complete placenta previa and am cramping only on the right side of my abdomen. Is this normal?

Call your obstetrician: Any persistent cramping you are having with placenta previa should be reported immediately to your obstetrician. The cramping could or could not be normal but only your obstetrician should make this determination. You should call your obstetrician now and discuss it with this M.D. If you should be asked to come in you should go immediately. Read more

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Dr. Heidi Fowler
146 Doctors shared insights

Placenta Blocks Cervix (Definition)

A previa is when a placenta entirely covers the opening of the cervix into the uterus (internal os). It is a reason for a cesarean section and if bleeding occurs and stops it may be a ...Read more


Placenta (Definition)

The placenta is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via ...Read more