Premenstrual Syndrome (PMS): Night sweats can be a symptom of PMS, which is a common condition experienced by many women. The symptoms of PMS, including night sweats, typically occur in the luteal phase of the menstrual cycle, right before the period starts.

Perimenopause: Women in the perimenopausal stage may experience night sweats due to hormonal fluctuations, which can also be related to their menstrual cycle.
Anxiety or Stress: Stress and anxiety can cause night sweats, and for some women, the premenstrual phase can be a time of heightened anxiety or stress, leading to this symptom.
Hormonal Imbalance: Other hormonal imbalances, not necessarily related to perimenopause, can cause night sweats. These imbalances might be more pronounced in the premenstrual phase.

Tuberculosis (TB): Although less common, TB can cause night sweats. It's crucial to consider this diagnosis, especially if the patient has been exposed to TB or has other symptoms like weight loss or cough.
Lymphoma: Certain types of lymphoma can cause night sweats as a symptom. Given the potential severity of lymphoma, it's essential to keep this in the differential diagnosis.
Hyperthyroidism: An overactive thyroid gland can lead to night sweats among other symptoms. This condition requires medical attention to manage and treat.

Pheochromocytoma: A rare tumor of the adrenal gland that can cause excessive production of adrenaline, leading to symptoms like night sweats.
Hypoglycemia: Low blood sugar can cause night sweats, although this would be less directly related to the menstrual cycle unless the patient has a condition affecting glucose regulation that is influenced by hormonal changes.
Other Endocrine Disorders: Rare endocrine disorders, such as carcinoid syndrome or an adrenal insufficiency, could potentially cause night sweats, though these would be less common and might not have a direct correlation with the menstrual cycle.