Spotting in the Second Trimester Causes

November 12, 2025

In the second trimester of pregnancy, it's normal to be concerned if you've seen some minor bleeding. Since your health and the health of your unborn child are intertwined, any uncommon event might be extremely concerning.

So, is spotting in the second trimester normal? The answer to this question cannot be simply yes or no, as it depends on several factors. Therefore, in this article, we shall explore the main reasons for spotting in the second trimester, as well as the warning signs that indicate serious complications requiring immediate medical help.

What is Spotting

What is Spotting?

Spotting refers to unexpected or abnormal light bleeding from the vagina. The bleeding is usually so slight that women will not need to wear any sanitary napkins or pads. In fact, in most cases, just a few drops of blood (pink, red or dark brown) may be noticed while going to the toilet or in the underwear.

What Causes Light Bleeding in the Second Trimester?

The second trimester is usually considered to be the midpoint of the pregnancy journey. It starts when the expectant mom has completed 13 weeks of pregnancy and it lasts till the 27th week. In other words, it usually covers months four, five and six of pregnancy.

Unlike light bleeding during the first trimester, spotting in the second trimester is not really a common occurrence. It could happen due to a number of reasons, such as:

1. Cervical Polyps

Non-cancerous, or benign, growths on the cervix are called cervical polyps. Usually, they don't cause any complications. However, pregnancy can cause cervical polyps to grow or cause irritation, which can result in bleeding. Usually, an exam will be performed to confirm if the presence of cervical polyps is the reason behind the spotting.

2. Placenta Previa

Placenta previa is a medical condition whereby the placenta develops abnormally and ends up blocking the cervix. One of the earliest symptoms is the presence of light vaginal bleeding during the second trimester. Intermittent bleeding usually lasts throughout the remainder of the pregnancy.

3. Placental Abruption

Placental abruption can also cause bleeding in the second trimester. This rare and serious pregnancy complication occurs when the placenta detaches, either completely or partially, from the uterine wall before childbirth commences.

4. Preterm Childbirth

Light vaginal bleeding may be noticed when childbirth commences before the due date, when the fetus has fully developed. Fetal development during a typical pregnancy lasts roughly 40 weeks. At 37 weeks, a pregnancy is considered "at term." Preterm is anything before 37 weeks.

5. Miscarriage

During a miscarriage, whereby the pregnancy is unexpectedly and spontaneously terminated before 20 weeks, one of the earliest signs would be vaginal bleeding that progresses from light to heavy. This could be accompanied by pain in the abdominal or lower back region.

6. Cervical Insufficiency

Spotting is also noticed when pregnant women have a condition called cervical insufficiency. Also called “incompetent cervix,” this occurs when the cervix opens or softens before the fetus is fully mature and ready to be delivered. This often results in miscarriage or premature birth.

7. Sexual Intercourse

In some cases, light spotting might be noticed after engaging in sexual intercourse during the second trimester. This is usually not a cause for concern, as it is usually due to hormonal or bodily changes.

8. Diagnostic Tests

The cervix is usually sensitive during pregnancy. Cervical exams, or other penetrative diagnostic tests like a pelvic exam, may lead to light vaginal bleeding that usually subsides within a short period of time.

9. Vasa Previa

Vasa previa is a rare and serious pregnancy complication that could endanger the life of the baby in the womb. This condition occurs when some of the blood vessels that connect your baby to the placenta lie across or very close to the cervix. When the water breaks during childbirth, these vessels can also break, leading to serious blood loss for the baby. One of the most common symptoms of vasa previa is the presence of painless vaginal bleeding in the 2nd or 3rd trimester.

10. Uterine Rupture

Uterine rupture is a serious and often life-threatening complication whereby the uterus breaks or ruptures during pregnancy. One of the earliest warning signs is light vaginal bleeding.

11. Vaginal Infections

Urinary tract infections (UTIs) and even sexually transmitted infections (STIs) can lead to light spotting. These will need to be treated so as to safeguard maternal and fetal health

When Should You Seek Help?

Any sort of vaginal bleeding, be it light or heavy, should be immediately reported to the OBGYN so as to rule out serious complications. Be sure to seek medical help promptly when:

● The bleeding has become very heavy, filling up sanitary napkins or pads.

● There are abdominal cramps or a feeling similar to contractions.

● The blood contains clots of tissue or blood clots, which may indicate a miscarriage.

● In the pelvic area, there is ongoing discomfort.

● There are symptoms such as fever and lightheadedness.

● When there are signs of preterm childbirth, for instance, if the amniotic sac seems to have ruptured (water breakage).

Book an online appointment with Dr. Choudem Divya for Pregnancy & Gynecology related issues.

How Will Spotting During the Second Trimester Be Managed?

Following the identification of the underlying reason for spotting during the second trimester (usually by physical examinations or ultrasound imaging), the healthcare provider might recommend the following:

● Constant monitoring to ensure optimal maternal and fetal health.

● Take adequate rest and stay hydrated.

● Taking medications, especially if the bleeding was the result of infections.

● Abstinence from sexual intercourse.

● Admission to a hospital for extensive care in case the bleeding does not stop or has become heavy.

Conclusion

Noticing even a few drops of blood during the second trimester can be an intensely alarming experience, and the first thoughts are often about the health of the baby within the womb. By being aware of the signs to watch out for and seeking immediate and timely medical help, serious complications can be prevented.

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Frequently Asked Questions

1. Is spotting normal during the 2nd trimester?

No, spotting is not normal during the 2nd trimester, and it needs to be assessed carefully in order to rule out potential complications.

2. When to worry about spotting during pregnancy?

Any form of bleeding during pregnancy, be it light or heavy, painful or painless, should be taken seriously.

3. What causes bleeding at 5 months pregnant?

Bleeding at 5 months of pregnancy can be caused by vaginal infections, sexual intercourse, placental issues, uterine rupture, etc. It can also be due to miscarriage or premature delivery.

4. Can stress cause spotting in the 2nd trimester?

There is no indication that stress can directly lead to spotting in the 2nd trimester.

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