Introduction
Sudden hair loss and persistent thinning can often point to an underlying health issue. Dermatologists identify three key medical conditions that may trigger alopecia, emphasizing the need for early diagnosis and treatment.
1. Hormonal Imbalances & Endocrine Disorders
Hormonal disruption—particularly involving thyroid disease or Polycystic Ovary Syndrome (PCOS)—can destabilize the hair growth cycle. Elevated androgens in women may weaken follicles, leading to gradual thinning along the crown or widening part lines. These internal disruptions often go unnoticed until symptoms like diffuse shedding surface.
2. Autoimmune & Inflammatory Conditions
Diseases such as alopecia areata and lupus may cause the immune system to erroneously attack hair follicles. This frequently results in sudden, round patches of hair loss—not only on the scalp but also eyebrows, beard or other body areas. Similarly, scalp inflammation from conditions like psoriasis or seborrheic dermatitis can aggravate hair fall.
3. Post‑Illness & Nutritional Deficiencies
Major illnesses, high fevers, or post‑viral syndromes (such as post‑COVID) can trigger telogen effluvium—a stress-induced shift of hair into the shedding phase. Nutritional shortfalls, particularly in protein, iron, vitamin D or other micronutrients, further weaken hair structure, resulting in visible thinning.
Why Early Action Matters
According to Dr. Amrutha Hosalli Karjol of Bengaluru’s Vrudhii Skin Center, early recognition and intervention are vital to prevent long-term follicular damage and restore confidence. Professional evaluation, including blood tests and scalp analysis, helps identify root causes and tailor treatment.
Timeline of Key Events
- August 2, 2025: Article published by HT Lifestyle explaining three medical triggers of alopecia.
- Interviews conducted with dermatologists including Dr. Hosalli Karjol.
Quiz & Trivia Nuggets
- Alopecia areata is autoimmune and can affect scalp, beard, eyebrows—even eyelashes.
- Telogen effluvium often follows illness or stress and is typically reversible.
- Hormonal disorders like PCOS or thyroid dysfunction often present with diffuse thinning rather than patchy baldness.
- Dr. Amrutha Hosalli Karjol is chief dermatologist at Bengaluru’s Vrudhii Skin Center.
- Early diagnosis and tailored treatments can significantly reverse medical alopecia.
Source: Hindustan Times