Alopecia is a broad medical term for hair loss, and it manifests in more forms than most people realize. The most common type, androgenetic alopecia — often called male- or female-pattern baldness — is driven by genetics and the hormone dihydrotestosterone (DHT), gradually thinning hair across the scalp over years or decades. Alopecia areata is an autoimmune condition in which the body's immune system mistakenly attacks hair follicles, producing patchy, unpredictable hair loss that can range from a few small bald spots to total scalp hair loss (alopecia totalis) or even complete body hair loss (alopecia universalis). Beyond these, telogen effluvium causes diffuse shedding triggered by physical or emotional stress, illness, hormonal shifts, or nutritional deficiencies — typically resolving once the underlying stressor is addressed. Traction alopecia results from chronic tension on the hair shaft due to tight hairstyles, while scarring alopecias, such as lichen planopilaris, permanently destroy follicles through inflammation, making early intervention especially critical.
Treatment options for alopecia vary widely depending on the type and severity of hair loss. For androgenetic alopecia, minoxidil (applied topically or taken orally) and finasteride (an oral DHT blocker, primarily for men) remain the most widely used FDA-approved medications, with consistent use being key to maintaining results. Alopecia areata is often addressed with corticosteroid injections directly into affected areas, topical immunotherapy, or, in more extensive cases, newer JAK inhibitors such as baricitinib and ritlecitinib — a class of drugs that have shown remarkable results in clinical trials by dampening the autoimmune response. Telogen effluvium generally responds well to nutritional correction and stress management, while platelet-rich plasma (PRP) therapy is gaining traction across multiple types of hair loss as a regenerative option. For permanent or advanced loss, hair transplant surgery offers a long-term solution by relocating follicles from denser areas of the scalp. No matter the type, early diagnosis through a dermatologist or trichologist is the single most important step — catching alopecia early preserves more options and improves outcomes significantly.