Hair Loss: Root Causes and Treatment Options

Hair loss can feel deeply personal, especially when it happens after illness, stress, rapid weight loss, postpartum changes, or a hormonal transition. In this episode, Dr. Mamina Turegano joins Dr. Kate Kresge to unpack the most common patterns of hair shedding and thinning, including telogen effluvium and androgenetic alopecia.Dr. Turegano explains why hair loss is often multifactorial and why the timing matters: shedding may appear months after a physiologic or emotional stressor. She walks through the root-cause workup she considers in practice, including thyroid function, ferritin, vitamin D, B12, zinc, sex hormones, inflammation, scalp health, and medication history.The conversation also covers postpartum hair loss, dandruff and scalp inflammation, protein intake, GLP-1-related weight loss, birth control changes, and evidence-informed options such as minoxidil, red light therapy, scalp massage, and PRP. Throughout the episode, Dr. Turegano brings a practical, compassionate approach to helping patients understand what may be driving hair loss and when a dermatology referral matters.Clinical Takeaways from This EpisodeTelogen effluvium timing matters: Diffuse shedding often appears two to four months after a stressor such as illness, surgery, childbirth, hemorrhage, crash dieting, low protein intake, thyroid dysfunction, or medication changes. (Malkud 2015)(Hughes 2024)Pattern recognition guides the workup: Telogen effluvium, androgenetic alopecia, alopecia areata, traction alopecia, and scarring alopecias can look different clinically, which is why scalp exam and referral are important when diagnosis is uncertain. (Mubki 2014)Nutrient status can inform care: Ferritin, vitamin D, B12, zinc, and thyroid markers may help identify contributing factors in selected patients, though deficiencies are not the only explanation for shedding. (Ahmed 2026)(Durusu 2024)Postpartum shedding is common but still deserves context: Hormonal shifts, delivery-related stress, sleep disruption, breastfeeding, and blood loss may all contribute, and persistent or patterned loss should be evaluated. (Hirose 2023)Treatment should match the diagnosis: Topical minoxidil, low-level laser therapy, and PRP have evidence for androgenetic alopecia, but protocols, response, safety considerations, and patient context vary. (Adil 2017)(Perez 2024)(Yao 2024)Guest Bio: Mamina Turegano, MD, is a triple board-certified dermatologist, internist, and dermatopathologist based in New Orleans. She specializes in medical, cosmetic, and integrative dermatology, blending conventional and holistic approaches to skin health. With over 2 million followers across social media, she shares dermatologist-backed skincare and wellness insights with a broad audience. She also co-hosts a podcast, called Skin Deep MDs, has been published in leading medical journals, and frequently contributes her expertise to major press outlets, TV, and beauty publications.Frequently Asked QuestionsWhat is telogen effluvium?Telogen effluvium is a form of diffuse, nonscarring hair shedding that often follows a physiologic or emotional stressor. The shedding commonly appears a few months after the trigger rather than immediately. (Malkud 2015)(Hughes 2024)What labs may be useful for hair shedding?Depending on the patient’s history and exam, clinicians may consider CBC, ferritin, thyroid markers, vitamin D, B12, zinc, and selected hormone testing. Lab results should be interpreted in context rather than used as a stand-alone explanation. (Malkud 2015)(Durusu 2024)Can postpartum hair loss be normal?Postpartum shedding is comm