Understanding what causes hair loss — conditions, deficiencies, genetics, and lifestyle factors
Key Takeaways: Vitamin B12 deficiency causes hair loss primarily through telogen effluvium — diffuse, whole-scalp shedding B12 supports hair health by enabling red blood cell...
Key Takeaways: Multiple peer-reviewed studies confirm smokers have significantly higher rates of androgenetic alopecia Nicotine narrows blood vessels,…
Key Takeaways: PCOS causes hair loss through excess androgen production — particularly testosterone and DHT PCOS-related hair loss…
Key Takeaways Dry scalp is a moisture-deficiency condition where the skin produces insufficient natural oils, affecting roughly 20-30%…
Key Takeaways Thyroid hair loss is a form of diffuse hair shedding caused by abnormal levels of thyroid…
Key Takeaways Scalp psoriasis is a chronic autoimmune condition that accelerates skin cell turnover from 28 days to…
Key Takeaways Iron deficiency is the most common nutritional cause of hair loss worldwide, affecting nearly 1 in…
Key Takeaways Seborrheic dermatitis affects 1-3% of the general population and up to 50% of adults experience some…
Key Takeaways Dandruff itself does not directly cause permanent hair loss, but the chronic scalp inflammation and scratching…
Medically Reviewed by Dr. Abhishek Pilani, MBBS, MD Dermatology (Gold Medalist), ISHRS Member, DHA Licensed Hair thinning in…
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Expert guide by Dr. Abhishek Pilani covering causes, treatments, and when to consider a hair transplant. Trusted by 10,000+ readers.
