Knowing the two main causes helps you know what to do next: genetic (androgenetic) hair loss progresses slowly and runs in families, while sudden, patchy loss points more toward an autoimmune pattern (alopecia areata) — either way, a dermatologist's evaluation confirms the cause before any next step.

noli's read

This post's description is broadly faithful to what the dermatology literature documents. Androgenetic alopecia (male or female pattern baldness) is indeed the most common form, with a strong hereditary component: family studies and reference chapters (StatPearls, NCBI Bookshelf, Goh 2024) report a 5-to-6-fold higher relative risk for a son if his father went bald, and heritability estimates up to 80%. The mechanism cited — heightened sensitivity to dihydrotestosterone (DHT), progressive follicle miniaturization — matches the documented pathophysiology exactly: androgen receptor activation shortens the hair cycle's growth (anagen) phase until the follicle produces only a hair too thin to break the skin's surface. The distinction drawn with alopecia areata — "sudden, patchy, possibly linked to an autoimmune response" — is also accurate: it's a distinct clinical entity, non-hormonal in origin. The post stays largely descriptive and emotionally supportive (self-esteem, acceptance) rather than prescriptive, which limits the risk of unqualified medication advice despite mentioning existing treatments. Verdict: holds up — the description of causes and mechanism matches the reference literature on the topic.

the sources

No named source held this one up — that absence is part of the verdict.