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Asherman syndrome

Definition

Asherman syndrome is the formation of scar tissue in the uterine cavity. The problem most often develops after uterine surgery.

Causes

Asherman syndrome is a rare condition. In most cases, it occurs in women who have had several dilatation and curettage (D&C) procedures.

A severe pelvic infection unrelated to surgery may also lead to Asherman syndrome.

Adhesions in the uterine cavity can also form after infection with tuberculosis or schistosomiasis. These infections are rare in the United States. Uterine complications related to these infections are even less common.

Symptoms

The adhesions may cause:

• Amenorrhea (lack of menstrual periods)

• Repeated miscarriages

• Infertility

However, such symptoms could be related to several conditions. They are more likely to indicate Asherman syndrome if they occur suddenly after a D&C or other uterine surgery.

Exams and Tests

A pelvic exam does not reveal problems in most cases.

Tests may include:

• Hysterosalpingography

• Hysterosonogram

• Transvaginal ultrasound examination

• Hysteroscopy

• Blood tests or other laboratory examinations to detect tuberculosis or schistosomiasis

Treatment

Treatment involves surgery to cut and remove the adhesions or scar tissue. This can most often be done with hysteroscopy. This uses small instruments and a camera placed into the uterus through the cervix.

After scar tissue is removed, the uterine cavity must be kept open while it heals to prevent adhesions from returning. Your health care provider may place a small balloon inside the uterus for several days. You may also need to take estrogen while the uterine lining heals.

You may need to take antibiotics if there is an infection.

Support Groups

The stress of illness can often be helped by joining a support group. In such groups, members share common experiences and problems.

Outlook (Prognosis)

Asherman syndrome can often be cured with surgery. Sometimes more than one procedure will be necessary.

Women who are infertile because of Asherman syndrome may be able to have a baby after treatment. Successful pregnancy depends on the severity of Asherman syndrome and the difficulty of the treatment. Other factors that affect fertility and pregnancy may also be involved.

Possible Complications

Complications of hysteroscopic surgery are uncommon. When they occur, they may include bleeding, perforation of the uterus, and pelvic infection.

In some cases, treatment of Asherman syndrome will not cure infertility.

When to Contact a Medical Professional

Contact your provider if:

• Your menstrual periods do not return after a gynecologic or obstetrical surgery.

• You cannot get pregnant after 6 to 12 months of trying (your provider may ask you to see a specialist for an infertility evaluation).

Prevention

Most cases of Asherman syndrome cannot be predicted or prevented.

References

Dolan MS, Hill CC, Valea FA. Benign gynecologic lesions: vulva, vagina, cervix, uterus, oviduct, ovary, ultrasound imaging of pelvic structures. In: Gershenson DM, Lentz GM, Valea FA, Lobo RA, eds. Comprehensive Gynecology. 8th ed. Philadelphia, PA: Elsevier; 2022:chap 18.

Humphreys MA, Branch DW. Recurrent pregnancy loss. In: Lockwood CJ, Copel JA, Dugoff L, et al, eds. Creasy and Resnik's Maternal-Fetal Medicine: Principles and Practice. 9th ed. Philadelphia, PA: Elsevier; 2023:chap 41.

Turocy J, Williams Z. Early and recurrent pregnancy loss: etiology, diagnosis, treatment. In: Gershenson DM, Lentz GM, Valea FA, Lobo RA, eds. Comprehensive Gynecology. 8th ed. Philadelphia, PA: Elsevier; 2022:chap 16.

Wei PK, Savicke AM, Levine D. The uterus. In: Rumack CM, Levine D, eds. Diagnostic Ultrasound. 6th ed. Philadelphia, PA: Elsevier; 2024:chap 28.

Review Date: 4/16/2024

Reviewed By: John D. Jacobson, MD, Professor Emeritus, Department of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.