Rapid weight gain in females is caused by a variety of factors such as hormonal fluctuations, underlying medical conditions, diet and your lifestyle choices.
Hormonal imbalances such as through menopause and declining estrogen levels due to menopause can result in increased body fat storage and weight gain.
Polycystic Ovary Syndrome can also cause rapid weight gain in females and is a hormonal disorder which can cause irregular periods, weight gain and other symptoms.
Thyroid issues like Hypothyroidism "underactive thyroid", can slow down your metabolism and result in rapid weight gain.
Also eating more calories than your body is able to burn, including consuming hidden calories from sugary drinks or excessive processed foods, can also result in rapid weight gain in females.
A lack of sleep, stress and reduced physical activity also contributes to rapid weight gain in females.
Not getting enough sleep can disrupt your hormones which regulate your metabolism and appetite and can result in increased hunger and rapid weight gain.
High stress levels can also trigger emotional eating and increase the production of cortisol, which can also promote fat storage.
Not getting enough exercise or not moving around enough and living a sedentary lifestyle can also decrease your calorie expenditure and result in rapid weight gain.
Other things that can result in rapid weight gain in females are certain medications, fluid retention, Ovarian cancer, age, pregnancy, edema and Cushing's syndrome.
Edema which is also known as fluid retention can result in swelling and a temporary increase in your weight.
Weight gain is normal in pregnancy but some women experience more weight gain which can occur during or after the pregnancy.
And age can also result in rapid weight gain or weight gain in general, because metabolism often slows down with age and makes it easier o gain weight if your dietary habits and your activity levels are not adjusted.
In some cases, ovarian cancer can result in weight gain as a result of the fluid buildup in your abdomen.
In Cushing's syndrome, the condition results from prolonged exposure to high levels of cortisol, and results in weight gain, most particularly in the face, abdomen and neck.
And conditions such as heart problems, kidney problems, preeclampsia or even certain medications can result in fluid retention and result in a rapid increase in weight.
Some medications like antidepressants, corticosteroids and other medications such as for schizophrenia and bipolar disorder can result in weight gain as a side effect.