Why hasn't a sixth-grade girl started her period yet?

Generally, the absence of menstruation in sixth-grade girls may be caused by delayed puberty, malnutrition or excessive dieting, hypothyroidism, polycystic ovary syndrome (PCOS), hyperprolactinemia, and other factors. If discomfort occurs, timely medical consultation is recommended. Detailed explanations are as follows:

1. Delayed Puberty

Puberty is a complex physiological process influenced by multiple factors such as genetics and environment. Some girls may experience delayed puberty and later menarche due to genetic factors or slower growth and development. Adequate sleep and moderate physical activity in daily life can help promote growth and development.

2. Malnutrition or Excessive Dieting

Malnutrition or excessive dieting can lead to a lack of essential nutrients in the body, affecting the normal development of the reproductive system and resulting in delayed menarche. It is important to ensure girls receive a balanced diet containing sufficient protein, vitamins, and minerals. Avoid excessive dieting or picky eating habits and maintain healthy eating behaviors.

3. Hypothyroidism

Hypothyroidism occurs due to decreased synthesis or secretion of thyroid hormones, leading to a reduced metabolic rate, which may affect normal physiological functions, including reproductive system development, causing delayed menarche. It may also present with symptoms such as fatigue and weight gain. Patients may follow medical advice to take medications such as methimazole tablets, levothyroxine sodium tablets, propranolol hydrochloride tablets, etc.

4. Polycystic Ovary Syndrome (PCOS)

Polycystic ovary syndrome results from the combined effects of genetic and environmental factors. Elevated androgen levels in the body affect normal ovarian function, potentially causing menstrual delay. It may also be accompanied by metabolic abnormalities. Under a doctor's guidance, medications such as dydrogesterone tablets, spironolactone tablets, metformin extended-release tablets, etc., may be used for treatment.

5. Hyperprolactinemia

Hyperprolactinemia occurs due to excessive secretion of prolactin by the pituitary gland, which suppresses ovarian function, leading to the above-mentioned conditions. It may also be accompanied by symptoms such as headaches and visual disturbances. Patients may follow medical advice to use medications such as octreotide acetate injection, vitamin B6 tablets, aripiprazole tablets, etc.

Maintain a balanced diet with sufficient nutrition in daily life, avoid excessive dieting for weight loss, and pay attention to personal hygiene and maintaining a healthy mindset.