Final answer:
Habitual abortion can be caused by hormonal imbalances, including hyperthyroidism, hypothyroidism, diabetes mellitus, and polycystic ovary syndrome (PCOS).
Step-by-step explanation:
Habitual abortion refers to the recurrent loss of pregnancies. In some cases, hormonal imbalances can contribute to habitual abortion. The hormonal causes of habitual abortion include:
- Hyperthyroidism: Overactive thyroid function can disrupt the hormonal balance in the body, potentially leading to habitual abortion.
- Hypothyroidism: Underactive thyroid function can also affect the hormonal balance, increasing the risk of habitual abortion.
- Diabetes mellitus: Poorly controlled diabetes can cause hormonal disturbances that may contribute to habitual abortion.
- Polycystic ovary syndrome (PCOS): PCOS is a hormonal disorder that can affect fertility and increase the risk of habitual abortion.