{
    "abstract": "Oligomenorrhea is defined as\u00a0irregular and inconsistent menstrual blood flow in a woman. Some change in menstrual flow is normal at menarche, postpartum, or in the perimenopausal period. But if a woman reports the length of menstrual cycle greater than 35 days or four to nine menstrual cycles in a year, then it is termed as oligomenorrhea.\u00a0 Menstrual flow should be normal before the development of oligomenorrhea.",
    "authors": [
        {
            "collective": null,
            "firstname": "Yumna",
            "initials": "Y",
            "lastname": "Riaz"
        },
        {
            "collective": null,
            "firstname": "Utsav",
            "initials": "U",
            "lastname": "Parekh"
        }
    ],
    "copyrights": "Copyright \u00a9 2025, StatPearls Publishing LLC.",
    "doi": null,
    "isbn": null,
    "language": "eng",
    "publication_date": "2025",
    "publication_type": "Study Guide",
    "publisher": "StatPearls Publishing",
    "publisher_location": "Treasure Island (FL)",
    "pubmed_id": "32497117\n32500628\n32202730\n31499503\n18043554\n20702019\n32473322\n32474062\n32472424\n19902985\n31918426\n32504303\n32492950\n30269265\n32504286\n28159846\n32809410",
    "sections": [
        {
            "chapter": null,
            "title": "Continuing Education Activity"
        },
        {
            "chapter": null,
            "title": "Introduction"
        },
        {
            "chapter": null,
            "title": "Etiology"
        },
        {
            "chapter": null,
            "title": "Epidemiology"
        },
        {
            "chapter": null,
            "title": "History and Physical"
        },
        {
            "chapter": null,
            "title": "Evaluation"
        },
        {
            "chapter": null,
            "title": "Treatment / Management"
        },
        {
            "chapter": null,
            "title": "Differential Diagnosis"
        },
        {
            "chapter": null,
            "title": "Pertinent Studies and Ongoing Trials"
        },
        {
            "chapter": null,
            "title": "Prognosis"
        },
        {
            "chapter": null,
            "title": "Complications"
        },
        {
            "chapter": null,
            "title": "Deterrence and Patient Education"
        },
        {
            "chapter": null,
            "title": "Enhancing Healthcare Team Outcomes"
        },
        {
            "chapter": null,
            "title": "Review Questions"
        },
        {
            "chapter": null,
            "title": "References"
        }
    ],
    "title": "StatPearls"
}