Lighter periods often follow a stretch of weight loss and nutritional stress, since your cycle hormones are sensitive to both. Even after your weight recovers, the uterine lining can take time to build up fully each month. That shows up as a shorter, lighter flow. Regular timing with variable flow usually means your body is still recovering, not a new problem.
Next Steps
A pelvic ultrasound and a hormone panel, including
thyroid and
prolactin, will show whether your uterine lining and ovulation have fully normalized. Checking your iron and
vitamin D levels helps too, since both affect flow.
Health Tips
See a gynaecologist if your flow stops completely for a cycle, or if you notice pain or bleeding between periods.