What happen when woman has PCOD... PCOD is caused by an imbalance in the harmones in your brain and your ovaries. PCOD means that the ovariy aren't getting the right hormonal signals from the pituitary gland without these signals woman won't evaluate every month thus causing irregular periods and also infertility in some cases. Women having PCOD can be managed with following lifestyle modification 1. Healthy diet 2. Adequate sleep 3. Regular exercise 4. Stress management 5. Good medical Treatment