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Reduced menstrual flow
Hello Doctor, I am a 26-year-old female. I have been experiencing very light/less blood flow during my periods recently. I am currently taking isotretinoin for my acne. Could the reduced menstrual flow be a side effect of isotretinoin, or could there be another underlying cause? Please advise if I need any evaluation or tests. Thank you.
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Answers (7)

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A clear cause-and-effect between isotretinoin and lighter periods is not established in the evidence, though a few users do report cycle changes. More commonly, lighter flow reflects stress, weight change, thyroid shifts or hormonal fluctuation. A basic hormone and thyroid check clarifies the picture.
Next Steps
Please book a gynaecology consult with your last three cycle dates and flow pattern; basic blood work will guide from there.
Health Tips
Do not stop your acne treatment on your own before that review.
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It can be a side effect of isotretinoin but if it persists we may need to investigate it
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Isotretinoin may alter blood flow.
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.