Management of Spotting After Dilation and Curettage (D&C)
Withdrawal Bleeding
- Stopping combined oral contraceptives on the day of D&C creates an immediate hormone‑free interval that triggers withdrawal bleeding, which typically begins 2–7 days after cessation. 1
- Spotting that appears on day 4 after the procedure aligns precisely with the expected timing of withdrawal bleeding following abrupt discontinuation of hormonal contraception. 2
- High‑dose combined oral contraceptives induce robust endometrial proliferation; when discontinued, they can produce heavier withdrawal bleeding. 3
- Light spotting for 4–7 days after D&C is considered normal, and withdrawal bleeding from stopping combined oral contraceptives usually resolves within one week. 1
- The temporal relationship between stopping high‑dose combined oral contraceptives and the onset of spotting is the most parsimonious explanation when the timing matches. 2
Structural Causes (Retained Polyp Base)
- Endometrial polyps are recognized structural causes of abnormal uterine bleeding; incomplete removal during D&C can leave a bleeding polyp base. 4
- Polyps identified on hysteroscopy or imaging should be considered potential bleeding sources when spotting occurs after the procedure. 4
Initial Evaluation (Rule‑Out High‑Risk Causes)
- Obtain an immediate pregnancy test to exclude ectopic pregnancy or other pregnancy‑related complications that can present as spotting. 3
- Screen for sexually transmitted infections, which may cause irregular uterine bleeding independent of the D&C. 3
- Assess for signs of infection, retained products of conception, or uterine perforation—complications of D&C that require urgent intervention. 4
Imaging and Diagnostic Work‑up
- If spotting persists beyond 7–10 days or becomes heavy, perform transvaginal ultrasound to evaluate endometrial thickness and identify retained tissue or polyp remnants. 4
- When ultrasound is limited (e.g., due to adenomyosis or fibroids), MRI with diffusion‑weighted imaging provides superior tissue characterization. 4
- Hysteroscopy is the gold‑standard for direct visualization of retained polyp bases or other intra‑uterine abnormalities when imaging is inconclusive. 4
Hormonal and Lifestyle Considerations
- Review whether the patient was on an extended or continuous combined oral‑contraceptive regimen before stopping; unscheduled bleeding is common during the first 3–6 months of such regimens and may persist briefly after discontinuation. 1
- Cigarette smoking increases the risk of breakthrough bleeding in combined oral‑contraceptive users and may contribute to post‑cessation spotting. 6
Management Algorithm
Days 1–7 Post‑D&C
- Reassure the patient that light spotting is normal; adopt expectant management unless bleeding becomes heavy (soaking > 1 pad per hour for ≥ 2 consecutive hours) or is accompanied by fever, severe pain, or foul‑smelling discharge. 4
Days 8–14 Post‑D&C
- If spotting persists, obtain transvaginal ultrasound to assess for retained tissue.
- Measure serum β‑hCG if a pregnancy test was not performed initially or if pregnancy‑related bleeding is suspected. 3
Beyond 14 Days or Heavy Bleeding
- Refer for hysteroscopy when imaging suggests a retained polyp base or when bleeding continues despite a normal ultrasound. 4
- Consider endometrial sampling in patients > 30 years old or those with risk factors for endometrial hyperplasia or malignancy. 4
Common Pitfalls to Avoid
- Do not attribute all post‑procedure bleeding to the D&C without first excluding pregnancy, infection, and structural pathology, as these conditions require specific treatment. 3
- Do not assume that the presence of polyps automatically explains bleeding; evidence shows polyps are not consistently associated with increased bleeding risk.
- Do not restart combined oral contraceptives immediately without addressing the underlying cause of spotting, as this may mask pathology requiring intervention. 6