Question 1

What are the causes of hair loss?

Accepted Answer

Hair loss, or alopecia, can result from a wide range of underlying causes—some transient and reversible, others chronic or progressive. Common contributors include genetic predisposition (androgenetic alopecia), hormonal fluctuations (such as those occurring during pregnancy, postpartum, menopause, or with thyroid disorders), nutritional deficiencies (particularly iron, vitamin D, zinc, biotin, or protein), and significant physiological or psychological stress (telogen effluvium). Autoimmune conditions like alopecia areata, inflammatory scalp disorders (e.g., seborrheic dermatitis, psoriasis, or frontal fibrosing alopecia), and certain medications—including anticoagulants, retinoids, antidepressants, beta-blockers, and chemotherapy agents—can also trigger hair shedding or permanent follicular damage. Additionally, traction from tight hairstyles, chemical treatments, or heat styling may lead to traction alopecia or traumatic hair loss. A thorough evaluation—including detailed history, p

Question 2

How is genital warts best treated?

Accepted Answer

Genital warts—clinically known as condylomata acuminata—are caused by certain low-risk strains of human papillomavirus (HPV), most commonly HPV types 6 and 11. Treatment is aimed at removing visible lesions, alleviating symptoms such as itching or discomfort, and reducing transmission risk—but it does not eradicate latent HPV infection. Therefore, recurrence is common, and management requires both lesion-directed therapy and patient-centered counseling.

First-line treatment options depend on le

Question 3

What are the methods for fading acne marks?

Accepted Answer

There are several evidence-based approaches to help fade post-inflammatory hyperpigmentation (PIH)—commonly referred to as “acne marks” or “dark spots”—which occur after acne lesions heal. Unlike true scars (which involve structural skin damage), PIH results from excess melanin deposition triggered by inflammation. Effective management requires patience, sun protection, and often a combination of topical agents and procedural interventions.

First and foremost, daily broad-spectrum sunscreen wit

Question 4

Associate Chief Physician Nie Xiaojuan, Shandong Provincial Hospital

Accepted Answer

Dr. Nie Xiaojuan is a Deputy Chief Physician specializing in internal medicine at Shandong Provincial Hospital, a leading tertiary comprehensive hospital affiliated with Shandong University and designated as a national clinical key discipline center. As a Deputy Chief Physician, she holds an advanced clinical rank in China’s physician promotion system—signifying extensive experience, demonstrated expertise in diagnosis and management of complex medical conditions, scholarly contributions, and ac

Question 5

How can the human papillomavirus (HPV) that causes genital warts be cleared from the body?

Accepted Answer

There is currently no treatment that can completely eliminate human papillomavirus (HPV) from the body once infection has occurred. HPV, including the high-risk and low-risk types associated with genital warts (such as HPV types 6 and 11), establishes persistent infection in basal keratinocytes of the skin or mucosa. While visible warts can be effectively removed using physical, chemical, or immunomodulatory therapies—including cryotherapy, topical imiquimod or podophyllotoxin, surgical excision

Question 6

How can severe hair loss be treated?

Accepted Answer

Severe hair loss—medically termed telogen effluvium, androgenetic alopecia, or, less commonly, alopecia areata or scarring alopecia—requires prompt, individualized evaluation. The first and most critical step is identifying the underlying cause, as treatment depends entirely on etiology. Common contributors include hormonal imbalances (e.g., thyroid dysfunction, polycystic ovary syndrome), nutritional deficiencies (especially iron, ferritin, vitamin D, zinc, and biotin), chronic stress, major il

Question 7

Why does insect bite dermatitis keep developing new lesions?

Accepted Answer

Recurrent or persistent insect bite reactions—often referred to as “chronic insect bite dermatitis”—can occur for several interrelated reasons. First, ongoing exposure to biting insects (e.g., mosquitoes, fleas, bed bugs, or mites) is the most common cause: if the source isn’t identified and eliminated—such as untreated pet infestations, environmental reservoirs, or unnoticed indoor pests—new bites will continue to appear, especially in exposed skin areas like arms, legs, or neck.

Second, some

What are the causes of hair loss?

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AI Medical Advisor

What are the causes of hair loss?

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Related Questions

How is genital warts best treated?

What are the methods for fading acne marks?

Associate Chief Physician Nie Xiaojuan, Shandong Provincial Hospital

How can the human papillomavirus (HPV) that causes genital warts be cleared from the body?

How can severe hair loss be treated?

Why does insect bite dermatitis keep developing new lesions?

AI Medical Advisor