Your Health Questions
Answered by Professionals

Tingling in your back is usually from temporary nerve irritation due to muscle strain or posture, but it can also be caused by a herniated disc or stenosis, shingles, diabetes or B12 deficiency, anxiety, or (less commonly) spinal cord conditions. Most cases aren’t dangerous, but seek urgent care for worsening or persistent tingling, new weakness, loss of bladder/bowel control, severe unrelenting pain, fever/weight loss, or a history of cancer or immune suppression. There are several factors to consider—see below for key details on causes, red flags, diagnosis, and treatment options that could change your next steps.

Yes—many people with alopecia find support groups helpful: they reduce isolation, offer practical tips (wigs/camouflage), and keep you updated on treatments; evidence from similar conditions shows improved quality of life, lower stress, and better coping. Groups vary and can carry pitfalls like misinformation or emotional triggers, and they should complement—not replace—care from a dermatologist or mental-health professional. There are several factors to consider; see below for how to choose a reputable group, other resources that may help, and the red flags (rapid or widespread loss, infection signs, significant depression) that mean you should contact a clinician.

Genetics are a major factor in alopecia: alopecia areata is highly polygenic (many immune and follicle genes involved) and androgenetic alopecia is strongly heritable (notably androgen-receptor variants), so family history raises risk but doesn’t guarantee hair loss. Genes interact with hormones, nutrition, stress, illnesses, and medications, and routine genetic testing isn’t standard—evaluation and treatment depend on the type. There are several factors to consider; see below for complete details and guidance on next steps.

Yes—alopecia can affect anyone, regardless of age, sex, or ethnicity, though your risk is higher with a family history, autoimmune conditions, hormonal changes, and triggers like stress, illness, or traction on the hair. There are several factors to consider—including the type of hair loss, warning signs that warrant a doctor visit, and treatment options with regrowth expectations—so see below for details that may shape your next steps.

Yes—alopecia areata can involve eyebrows and eyelashes, causing patchy thinning or complete loss; eyebrow loss occurs in about 25–50% of patients, and lash loss can lead to eye irritation or dryness and may indicate more extensive disease. Early diagnosis and treatment can improve the chance of regrowth. There are several factors to consider; see below for key signs, how it’s diagnosed, risks to eye health, evidence-based and cosmetic treatments (steroids, topical immunotherapy, JAK inhibitors, minoxidil), and when to seek medical care.

Yes—alopecia areata can be misdiagnosed; overlapping symptoms with other hair-loss causes and its waxing/waning course can lead to delays or inappropriate treatment. There are several factors to consider: key look-alikes and the tests that distinguish them (dermoscopy, labs, biopsy) are explained below to guide your next steps and when to see a specialist.

Alopecia can improve, stay stable, or get worse over time—the course depends on the type (alopecia areata is unpredictable; pattern hair loss usually progresses) and factors like age at onset, extent of hair loss, autoimmune conditions, and stress. There are several factors to consider and treatments that may slow or reverse loss if started early; see the details below for signs of progression, when to contact a doctor, and options to monitor and treat.

Yes—alopecia, especially alopecia areata, is linked to higher rates of depression and anxiety; studies show about a 1.5–2x increased risk, with up to 39% experiencing significant depressive symptoms. There are several factors to consider; key triggers, warning signs, and next steps—including when to seek urgent help and which treatments and supports can help—are outlined below.

Yes—counseling can meaningfully help people with alopecia by reducing anxiety and depression, improving self-esteem, and building coping skills through approaches like CBT, ACT, and supportive or group therapy. Pairing counseling with medical care offers a more holistic plan and can strengthen social support and treatment adherence. There are important options, how to find the right therapist/support group, cost/insurance tips, and urgent mental health red flags to consider—see the complete details below.

Yes—emotional stress can trigger or worsen hair loss, including telogen effluvium and flares of alopecia areata; shedding often appears 2–3 months after a stressful event and may improve within 6–9 months once triggers are addressed. There are several factors to consider, including other causes like genetics, thyroid problems, anemia, and medications—see below for key signs, treatment options (from stress reduction to medical therapies), and when to seek care.

Yes—lifestyle changes can support healthier follicles and sometimes promote regrowth, especially with balanced nutrition (protein, iron, vitamin D, zinc), omega‑3/6 and antioxidants, stress reduction, scalp care/massage, regular exercise, quality sleep, hydration, and limiting smoking/alcohol. Not every cause is reversible, so watch for rapid or patchy loss, scalp symptoms, or thinning with other symptoms and seek professional evaluation—see details below for specific diet, supplement, and scalp-care guidance and when treatments like minoxidil may be appropriate.

Yes—menopause can worsen hair thinning and shedding because falling estrogen and progesterone make androgens relatively stronger, accelerating follicle miniaturization and unmasking genetic female pattern hair loss; stress-related telogen effluvium or autoimmune patches may also appear. Treatments can include topical/oral minoxidil, anti-androgens, HRT, nutrition, and gentle hair care, with rapid or patchy loss or systemic symptoms needing medical evaluation. There are several factors to consider; see the details below to understand patterns, rule out other causes (thyroid, iron, medications), and choose the right next steps.

Yes—hormone changes can make hair look fuller during pregnancy, then cause temporary shedding (telogen effluvium) starting about 2–4 months after delivery and usually improving by 6–12 months. There are several factors and red flags to consider (patchy loss, scalp symptoms, thyroid/iron issues, or shedding lasting >12 months), plus practical care tips and when to seek treatment—see the complete guidance below to help decide your next steps.

Yes—viral infections can trigger hair loss. Most often they cause telogen effluvium, a diffuse shed starting about 2–3 months after illness (seen with COVID-19, flu, mono) that usually improves within months; in some people, viruses can also trigger alopecia areata, leading to patchy bald spots that may need treatment. There are several factors to consider (timing, pattern, tests, and when to seek care); see below for the complete answer and guidance on next steps.

Yes—blood tests rarely give a simple yes/no diagnosis, but they’re very helpful for uncovering treatable causes of hair loss and guiding care (commonly ferritin/iron, vitamin D, thyroid function, and select autoimmune markers, with other nutritional or hormonal labs as indicated). There are several factors to consider—what to test, thresholds that matter, monitoring timelines, and when rapid or patchy loss needs prompt evaluation—see the complete details below, which can influence your next steps with a clinician.

Yes, topical corticosteroids can promote hair regrowth in mild to moderate alopecia areata, with about 30 to 60% responding (highest with potent agents like clobetasol, sometimes under occlusion) and early regrowth often appearing in 6 to 8 weeks. They’re best for small, patchy disease (including in children), but relapses are common and stronger or longer use raises risks like skin thinning; more extensive or fast‑spreading cases may need injections or other therapies. There are several important factors to consider—potency, regimen, timelines, side effects, and when to escalate—see the complete guidance below to inform your next steps.

Yes—alopecia areata often affects nails (in about 50–66% of people), most commonly causing small, irregular pits, but also rough brittle nails (trachyonychia), Beau’s lines, ridging, and white spots. These changes reflect immune activity in the nail matrix, may correlate with disease severity, and can improve with treatment; there are several factors to consider, so see below for how to distinguish from psoriasis, treatment options, and when to seek care.

Alopecia areata mainly affects hair and typically doesn’t shorten life expectancy, but it’s linked to higher rates of other health issues—especially thyroid and other autoimmune diseases, metabolic syndrome/cardiovascular risk, atopic conditions/diabetes—and it can significantly affect mental health (anxiety and depression). There are several factors to consider; see below for the full list of potential comorbidities, recommended screenings and lifestyle steps, treatment options, and when to seek care.

Yes—alopecia can cause itching or burning, but it depends on the type: about 25–30% of people with alopecia areata feel itch or burning, scarring alopecias are often intensely symptomatic, while pattern hair loss and telogen effluvium usually are not. These sensations usually reflect inflammation around hair follicles rather than infection. There are several factors to consider, including red flags and treatment options—see below to understand more.

Alopecia can appear in both patterns: patchy bald spots (most often alopecia areata) and diffuse thinning or shedding across the scalp (commonly telogen effluvium, but also pattern hair loss or anagen effluvium). Which pattern you have—and any recent triggers, timing, and treatment options—matters for next steps; see the details below to understand how to tell them apart and when to seek care.

Yes—starting treatment early generally improves outcomes by rescuing vulnerable follicles before permanent damage; clinical trials show earlier use of finasteride or minoxidil leads to better hair retention and regrowth. The cause matters: pattern loss often responds to these meds, alopecia areata and scarring alopecias need prompt medical therapy to prevent irreversible loss, and telogen effluvium improves when triggers are addressed. There are several factors to consider—see below for key details on diagnosis, treatment options, timelines, and red flags that can change your next steps.

Yes—in mild, patchy alopecia areata, topical minoxidil can promote hair regrowth, though gains are modest, may take 3–6 months, and it’s far less effective for extensive disease. There are several factors to consider (off‑label use, better results when combined with corticosteroids, side effects, and when to switch treatments); see below for full details and guidance on next steps to discuss with your dermatologist.

Yes—stress can trigger diffuse hair shedding called telogen effluvium, typically starting 2–3 months after a major stressor and usually reversing over 3–6 months once the trigger resolves. There are several factors to consider, including chronic stress, nutrition, medical conditions, and autoimmune alopecia areata (patchy bald spots), so the best next steps—labs, stress reduction, gentle hair care, or treatments—depend on your situation; see the complete guidance below. Seek care promptly for patchy loss, scalp symptoms, or shedding that continues beyond 6 months; details below.

Yes—vitamin deficiencies can contribute to diffuse hair thinning and shedding, particularly low vitamin D, biotin (B7), B12, A, C, and E, with higher risk from poor diet, malabsorption, certain medicines, or increased nutrient needs. There are several factors to consider, and testing before supplementing (e.g., vitamin D, B12, iron/ferritin) plus targeted diet and lifestyle changes is key—see below for specific signs, safe dosing ranges, and when to seek care. Also note that too much vitamin A can cause hair loss, so avoid self-supplementing and review the details below.

Alopecia areata is relatively common: about 2% of people (≈1 in 50) will develop it at some point, with 0.1–0.2% affected at any given time and ~20 new cases per 100,000 each year; rates are similar worldwide. In the U.S., that translates to roughly 6–7 million people over a lifetime. There are several factors to consider—age of onset, family history, related autoimmune conditions, and when to seek care—see the details below to understand what could impact your next steps.

Doctors distinguish these by exam, dermoscopy, and tests: tinea capitis usually has scaling, itch, broken “black dot” and comma/corkscrew hairs with possible tender lymph nodes and a positive KOH/culture or Wood’s lamp; alopecia areata shows smooth, non-scaly bald patches with exclamation‑mark hairs and yellow dots on trichoscopy, no fungi on KOH, and biopsy if unclear. Because treatments differ (oral antifungals vs corticosteroids/immunotherapy), there are several factors to consider—see the complete details below to guide your next steps.

Doctors track alopecia progression using a combination of clinical history and scalp exam; standardized scoring such as the SALT score; serial photographs and trichoscopy; hair-shedding tests (hair pull, hair counts/weights); patient-reported measures; digital tools for remote monitoring; and, when needed, scalp biopsy, with follow-ups typically every 3–6 months and sooner if loss is rapid or treatments change. There are several factors to consider that can change next steps and timing—including which tools fit your alopecia type and when to seek urgent care—see below for complete details.

Alopecia can significantly affect mental health—commonly lowering self-esteem and body image, driving social withdrawal, and raising the risk of anxiety (up to ~39%) and depression (~30%), with women and younger people often more affected. There are several factors to consider—identity, unpredictability, and stigma—and there are effective supports (medical care, therapy, support groups, cosmetic options, mind–body tools); see the complete guidance below, including red flags for urgent help and next steps to take.

Alopecia universalis is the most severe form of alopecia areata, causing total or near-total loss of hair on the scalp and body (including eyebrows and eyelashes), while patchy alopecia causes one or more discrete bald spots that often come and go. Patchy alopecia is more common and more likely to regrow spontaneously or with topical/injected treatments; universalis is rarer, less likely to regrow without systemic therapy, and may have more pronounced nail and psychological impacts. There are several factors that affect prognosis and the right next steps (age at onset, speed and extent of spread, autoimmune history, treatment options)—see the complete details below.

Hair loss can significantly undermine self-esteem—research links it to anxiety, depression, social withdrawal, and a loss of identity or femininity/masculinity, with heightened impact in women, younger people, and those with alopecia areata. There are several factors to consider, including cause and unpredictability, but medical, cosmetic, and psychological treatments can help restore confidence; see below for specific options, coping strategies, and when to seek professional help.