8 Decidual Bleeding Questions and Concerns


Pregnant women will suffer from strange bodily changes. Decidual bleeding is one of those scary yet common occurrences that pregnant women experience. Approximately 20% – 30% of women suffer from uterine bleeding or vaginal bleeding during their first trimester.

You’re not alone.

Decidual bleeding may be the cause of your spotting or bleeding.

What Is Decidual Bleeding?

Spotting or bleeding during the initial stages of pregnancy is common. Since up to 30% of women will suffer from some form of bleeding during the first trimester, you’ll find many women in disarray.

Brown or pink discharge is common. The color of the discharge is caused by old or new blood respectively.

What Does Decidual Bleeding Look Like?

Brown or pink discharge can occur any time during pregnancy, and the amount of blood will determine whether you’re spotting or bleeding.

Some women say decidual bleeding is as heavy as their normal period, but this isn’t always the case. A woman may also notice small pieces of the uterine lining in her panties, too. Small, fibrous clots are often passed.

What Causes the Bleeding?Woman with abdominal pain clutching her stomach with her hands

Decidual bleeding is caused by the hormonal changes in the body. A woman’s hormonal levels will fluctuate rapidly, and this is to help the body prepare for the growing child inside the womb.

Sometimes, this will cause an imbalance that causes the uterine lining to shed during pregnancy. The shedding is what causes the bleeding.

Hormones rise during the start of a period, and the uterus thickens. Bleeding occurs when the uterine lining begins to shed.

If bleeding occurs at the normal time of menstruation during the first few months of pregnancy, you’re likely dealing with decidual bleeding.

[Read more about Decidual Bleeding]

8 Questions and Concerns about Decidual Bleeding

Blood and pregnancy are always a cause for concern. You’re pregnant, and the presence of blood is always cause for concern. A few concerns and questions you may have include:Concerns:hand pressing a button on blurred background concept

1. Can You Shed Your Uterine Lining and Still Be Pregnant?

Yes, to an extent. The bleeding shouldn’t be overly heavy, and it’s something you want to discuss with your doctor immediately. Any presence of blood is a concern, and a doctor is required to ensure your baby’s life isn’t at risk.

What happens is that the lining hasn’t had a chance to fully attach to the placenta. So, small parts of the lining will be expelled by the body, causing bleeding. This is normally not a cause for concern.

2. How Long Will the Bleeding Last?

The bleeding is short-lived, and won’t last as long as your normal period. If you’re experiencing the bleeding during the first few weeks of pregnancy, the condition is not decidual.

3. When Does This Condition Occur?

Due to the nature of this bleeding, it occurs during the normal days of a menstrual cycle. For example, if you were due to have your period on January 1, and it is expected to last until the 7th of the month, bleeding may occur between the 1st and 7th of the month.

Decidual bleeding occurs before the formation of the placenta.

In most cases, this will only occur during the initial stages of pregnancy.

4. Should Spotting Be Concerning?

Yes. Before a woman’s first ultrasound, there is a chance of spotting or bleeding. The concern is that this bleeding is caused by an early miscarriage, or it can be a sign of an ectopic pregnancy. Since the ultrasound hasn’t been performed, there is a chance that an intrauterine pregnancy is occurring.

If you notice spotting or bleeding of any kind, it’s always best to see a medical professional.

You may be shedding your uterine lining, or there’s a chance you’re suffering from pregnancy complications or miscarriage.

[Read more about Miscarriage]

5. What Color Is the Blood?

The uterus is already rich in blood, so when you begin to bleed, the color of the blood may be red, dark red or brown in color. You may also experience pink blood, which is often mixed with a bodily fluid that dilutes the blood’s color.

6. Is the Bleeding a Reason to Worry?Woman bleeding on the ground cartoon

While it’s advised to discuss the bleeding with a physician, decidual bleeding is normally not a cause for concern. Mom and baby are often unaffected from this form of bleeding.

7. Could I Be Having My Period?

Possibly. It’s a cause for concern any time you have bleeding when pregnant. Women may suffer from slight bleeding (as previously discussed), but if the bleeding is heavy or extended, stop reading and contact your doctor.

A woman will not have a normal period if she’s pregnant.

8. Is Implementation Decidual?

No. Implementation bleeding occurs when the egg attaches to the uterine wall. The attachment causes a slight bleeding, which leaves behind spotting and slight bleeding. This occurs much earlier than decidual bleeding, and it’s rare, too.

Just one-third of women state they had implementation bleeding.

Treatment Options for Decidual Bleeding

There are no over-the-counter treatment options available. Bleeding, especially during pregnancy, can be cause for concern. You need to seek medical treatment to ensure that the bleeding is not something more serious.Young pregnant woman at the doctor in the antenatal clinic

Your doctor may recommend:

  • Bed rest
  • Activity changes
  • Lifestyle changes
  • Dietary adjustments

If a hormonal imbalance is causing the issue, your doctor will recommend medicine or vitamins that aim to balance out the hormones.

There is a chance that you’re suffering from:

Proper tests and diagnosis are recommended. A doctor will sit down and check the possible causes and risks for a miscarriage.

Most women don’t see their doctor when decidual bleeding occurs, and the symptoms go away in just a day or two. If the bleeding persists or gets heavier, you’ll want to call your doctor immediately. This isn’t true menstrual bleeding, so it should be different.

Some women will have slight cramping at this time, but you won’t suffer from your normal cycle symptoms.

Your doctor should monitor you closely. This may be a sign of an early miscarriage. If you suspect that you’re having pregnancy complications, discuss these concerns with your doctor. Women that have had miscarriages in the past should consult with their physician to discuss ways to reach full term.


  1. I just started bleeding yesterday night and Im worried I know it’s not my period I had it March 1st and it only happens at night in the day time I’m fine it’s only at night and I don’t know what to do.


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