What causes menstrual irregularities?

The causes of menstrual disorders are diverse, primarily including the following: 1. **Endocrine disorders**: This is one of the most common causes. Conditions such as ovarian dysfunction, polycystic ovary syndrome (PCOS), hyperprolactinemia, and thyroid dysfunction can interfere with normal hormone secretion, leading to irregular menstruation. 2. **Organic lesions of the reproductive organs**: Such as uterine fibroids, endometrial polyps, and ovarian tumors. These conditions can directly affect the normal proliferation and shedding of the endometrium, resulting in menstrual irregularities. 3. **Lifestyle and emotional factors**: Prolonged mental stress, significant emotional fluctuations, unhealthy eating habits (e.g., excessive dieting, binge eating, smoking, and alcohol consumption), irregular sleep patterns, and excessive exercise for weight loss can all affect the body's endocrine system and lead to menstrual disorders. 4. **Systemic diseases**: Conditions such as hematologic disorders (e.g., thrombocytopenic purpura, aplastic anemia), liver disease, kidney disease, hypertension, and systemic lupus erythematosus (SLE) may also affect menstruation. 5. **Medication effects**: The misuse of medications, especially psychiatric drugs, contraceptives, and antibiotics, can also lead to menstrual disturbances. If you have any concerns, please consult a relevant healthcare professional.