Sudden Hair Loss in Women: Causes and Next Steps

Sudden hair shedding in women can follow a physical or emotional stressor, such as an illness, fever, surgery, major weight change, or childbirth; the extra shedding often becomes noticeable weeks or months after the event. A new medication, a restrictive diet, a thyroid problem, or a scalp condition can also be involved, so the timing and pattern of your hair loss matter more than any single symptom.

Check the product’s listed specifications when evaluating why might your hair suddenly be falling out.

If you see more full-length hairs in the shower or on your brush, you may be experiencing increased shedding, which can occur across the scalp. A widening part, distinct bald patches, a painful or inflamed scalp, or hairs breaking off close to the scalp may point to a different issue that deserves a clinician’s assessment.

Low iron, inadequate protein, and certain nutrient deficiencies can contribute to hair loss, particularly if you have been eating less, following a restrictive diet, or having heavy menstrual periods. Rather than guessing which supplement you need, ask a healthcare professional whether your history calls for testing; our Understanding Hair Loss from the Inside Out eBook is a digital guide to the nutrition side of hair loss.

Make a note of when the shedding began, any recent illness or life change, medication changes, and whether you notice thinning all over or in one area, then share those details with a healthcare professional. Seek care promptly if hair loss is rapid or patchy, your scalp is painful or inflamed, or you also have symptoms such as unusual fatigue; while you investigate, treat your hair gently and avoid tight styles that pull on it.

Check the product’s listed specifications when evaluating what should you do next.