Requires a medical diagnosis Symptoms include menstrual irregularity, excess hair growth, acne, and obesity. People may experience: Menstrual: abnormal menstruation, absence of menstruation, heavy menstruation, irregular menstruation, short and light menstruation, or spotting Weight: obesity, overweight, or weight gain Skin: acne or oily skin Also common: depression, inappropriate male features, infertility, loss of scalp hair, or unwanted hair Consult a doctor for medical advice Sources: Mayo Clinic and others. I have pcos. I e always had irregular periods and I started having cysts large enough to require surgery at the age of 12.