This article explores common medical conditions that cause excessive hair loss, including androgenetic alopecia, telogen effluvium, alopecia areata, and thyroid disorders. Understanding these causes can guide effective treatment and management, helping individuals address significant hair shedding related to health issues.

Common Medical Causes of Significant Hair Thinning

While hair naturally sheds and regrows in cycles, some individuals experience abnormal hair loss, signaling potential health concerns. Deficiencies in nutrients or underlying illnesses can be responsible. If you're noticing unusual hair fall, seeking medical advice is recommended. Below are some frequent medical reasons behind severe hair shedding.

Androgenetic Alopecia
Also known as hereditary pattern baldness, this condition affects both genders, typically starting after puberty. Men often notice receding hairlines and crown thinning, while women experience overall scalp thinning. Hormonal changes during menopause can accelerate this process.

Telogen Effluvium
This condition causes hair to enter the shedding phase prematurely, resulting in rapid hair loss and bald patches. Typically temporary, it can improve with proper treatment. Common triggers include thyroid imbalances, medications, rapid weight changes, childbirth, surgeries, and stress.

Alopecia Areata
An autoimmune disorder influenced by genetics, Alopecia Areata damages hair follicles, leading to patchy hair loss or complete scalp baldness. It may also affect eyebrows and body hair. With appropriate treatment, hair regrowth is achievable. Variants include patchy alopecia, totalis, and universalis.

Hyperthyroidism
Insufficient thyroid hormone production hampers metabolic functions, causing brittle hair and increased shedding. Over time, it can lead to patchy hair loss. If untreated, it poses serious health risks. An overactive thyroid similarly disrupts metabolism, impacting hair health.