After a miscarriage, the fetus and surrounding pregnancy tissue typically pass out of the body naturally within one to two weeks. In some cases, the tissue stays in the uterus and needs to be removed with medication or a minor surgical procedure. What happens next depends on how far along the pregnancy was, whether the body expels the tissue completely, and what choices you make about the remains.
How the Body Passes Pregnancy Tissue
When a miscarriage begins, the uterus contracts to expel the pregnancy tissue, much like it does during a heavy period. You’ll typically experience vaginal bleeding, cramping in the lower abdomen, and sometimes the noticeable passage of tissue. In very early pregnancies (before six or seven weeks), the tissue is small enough that it may look like heavy menstrual bleeding with clots. Later in the first trimester, you may see more recognizable tissue, including a small sac.
A complete miscarriage means all the fetal tissue has passed on its own. This is most common when the loss happens before 14 weeks. It usually involves heavy bleeding and strong cramping that gradually taper off over several days. Full physical recovery generally takes a couple of months.
When Tissue Doesn’t Pass Completely
Not every miscarriage resolves on its own. In an incomplete miscarriage, some tissue remains inside the uterus. Signs include heavy or prolonged bleeding (lasting longer than three weeks, soaking through pads quickly, or passing large clots), ongoing pelvic pain, fever, or tenderness in the uterus. These symptoms can indicate that retained tissue needs medical attention, since it raises the risk of infection if left untreated.
In a missed miscarriage, the pregnancy has stopped developing but the tissue stays in the uterus entirely. There may be no bleeding or pain at all. Many people don’t realize a missed miscarriage has occurred until an ultrasound shows no heartbeat. At that point, you’ll have three options for how to proceed.
Three Ways Miscarriage Is Managed
Expectant management means waiting for the body to pass the tissue naturally. This can take days to weeks, and it works well for many early losses. Some people prefer this approach because it allows the process to happen without intervention, though the unpredictable timing can be difficult.
Medical management uses medication to help the uterus contract and expel the tissue. This approach works in roughly 96 to 98 percent of cases in the first trimester. The medication is typically taken at home, and most of the tissue passes within several hours to a day. Cramping and heavy bleeding are expected, and the experience can be physically intense for a short period.
Surgical management involves a procedure called dilation and curettage, or D&C, which is used for losses before 14 weeks. A doctor gently opens the cervix and removes the pregnancy tissue. The procedure itself is brief, usually taking about 10 to 15 minutes, and is done under sedation or anesthesia. For losses after 14 weeks, a slightly different procedure called dilation and evacuation is used, which requires more cervical preparation. Surgery is often recommended when bleeding is heavy, there are signs of infection, or when the other approaches haven’t fully worked.
Genetic Testing on Pregnancy Tissue
Between 50 and 60 percent of miscarriages are caused by chromosomal abnormalities in the embryo or fetus. These are random errors in cell division that prevent the pregnancy from developing normally, and they’re not caused by anything the parents did.
When tissue is collected, either from a surgical procedure or sometimes from tissue passed at home, it can be sent to a lab for genetic analysis. One common method is chromosomal microarray analysis, which can detect a wide range of genetic abnormalities. In one study of over 1,200 samples, about 56 percent showed chromosomal problems. This testing can identify whether the miscarriage was caused by a genetic issue, which may provide answers and help guide decisions about future pregnancies. It’s particularly useful for people who have experienced more than one loss.
Not everyone chooses genetic testing, and it isn’t always offered after a single, early miscarriage. If it’s something you want, you can ask your provider about it, especially if tissue is being removed surgically, since that makes collection straightforward.
What Happens to the Remains
This is a question many people have but feel uncertain about asking. The answer depends on where the miscarriage happens and how far along the pregnancy was.
If you miscarry at home in an early pregnancy, the tissue passes into the toilet or a pad. Some people choose to collect the tissue, either for testing or because they want to bury or otherwise honor the remains. Others don’t, and that’s equally normal. There is no single right way to handle this.
If a D&C or other procedure is performed at a hospital or clinic, the facility will handle the tissue according to state regulations. In most states, fetal remains are subject to specific rules about disposition. Hospitals can typically dispose of tissue from early losses directly, following medical waste protocols. However, many facilities also offer parents the option to take the remains for private burial or cremation. For losses before 20 weeks, the process for obtaining remains is generally simpler than for later losses, though the specific rules vary by state. If having a burial or cremation is important to you, let your care team know before or during the procedure so they can preserve the tissue.
Some parents hold small memorial services, plant a tree, or keep an urn. Others process the loss privately without a physical ritual. Both approaches, and everything in between, are common and healthy responses to pregnancy loss.
Signs of Complications After a Miscarriage
Most miscarriages resolve without lasting physical problems, but retained tissue can cause issues if it isn’t addressed. Watch for bleeding that stays heavy or increases after initially slowing down, bleeding that continues beyond three weeks, fever, chills, or foul-smelling discharge. These can signal retained tissue or infection. An ultrasound is the standard way to check whether the uterus has fully emptied.
Physical recovery from a miscarriage typically takes several weeks to a couple of months. Hormone levels need time to return to their pre-pregnancy baseline, which means pregnancy tests may stay positive for a few weeks even after the tissue has passed. Most people get their period again within four to six weeks.