Hello, The commonest cause of missed period is pregnancy if you are sexually active were not on any contraceptive methods and had unprotective test. Other medical conditions that cause such symptom are hormonal imbalance, anemia, thyroid issues, obesity, PCOS, stressful lifestyle, etc. You are suggested to get clinically examined by a gynecologist, get blood analysis, Urinalysis, imaging tests to detect the pathology. You will be treated accordingly. Avoid addictions if any. Get treated at the earliest. Avoid oily food, trans fat, full fatty milk, cheese, red meat, etc. Take balanced home made food. Do exercises & walking in the morning and evening. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician