Q&A with Top Doctors

Why have I been losing hair severely lately?

Excessive hair loss recently may be caused by various factors. Hormones play an important role in the hair growth cycle, and changes in hormone levels during pregnancy, postpartum, and menopause can all lead to increased hair shedding.

Stress is a common cause of hair loss; whether psychological stress or physical illness or surgery can lead to temporary hair loss. Malnutrition, especially deficiencies in protein, iron, zinc, and vitamin D, can also affect hair health.

Long-term late nights, excessive fatigue, and excessive mental stress can affect the body's normal metabolism and endocrine function, thereby impacting hair health and leading to increased hair loss. Improper hair care, such as frequent dyeing, perming, or using excessively hot hair dryers, can also damage hair, causing breakage and shedding.

Hair loss is largely influenced by genetics. If there is a family history of hair loss, an individual's risk of hair loss also increases. Diseases such as anemia, thyroid disorders, and lupus erythematosus can also lead to increased hair shedding.

If experiencing any physical discomfort, it is recommended to visit a hospital promptly for comprehensive examination and evaluation to develop the most suitable treatment plan.

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Dr. Liu Wenmin
Jun 04, 2025
What causes lumps on the neck?

Lumps on the neck can be caused by various factors. Swollen lymph nodes are among the most common causes, typically indicating that the body is responding to an infection or inflammation. Lymph nodes in the neck area are particularly prone to enlargement when the body is fighting an infection.

Individuals with allergic constitutions may develop allergic reactions after exposure to allergens such as pollen or dust mites, which can lead to lumps on the neck. Eczema, related to genetic factors, improper diet, and chemical irritation, primarily presents as red papules, possibly accompanied by symptoms such as itching, flaking, and swelling.

Folliculitis, caused by weakened immunity and bacterial infection, results in localized itching and pain, and may lead to hard lumps on the neck. Sebaceous cysts are associated with blocked sebaceous gland ducts, presenting as localized redness, suppuration, and pain, with possible lumps appearing on the neck. Thyroid nodules, located in the front of the neck, can also cause neck masses due to any abnormalities in the thyroid gland.

If you notice a lump on your neck, it is recommended to seek medical attention promptly. A healthcare professional can perform necessary examinations and imaging tests, such as ultrasound, CT, or MRI, to determine the nature and cause of the lump and provide appropriate treatment.

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Dr. Liu Wenmin
Jun 04, 2025
Why do bruises appear on the thighs?

Medically, the appearance of bruised, purplish patches on the thigh is commonly referred to as bruising or hematoma. This typically occurs when small blood vessels beneath the skin rupture, causing blood to leak into the surrounding tissues. Common causes include minor injuries, collisions, or the effects of certain medications.

Injuries are a common cause. If the thigh has recently experienced physical impact, such as a bump or fall, it can lead to ruptured blood vessels under the skin, resulting in bruising and the appearance of purplish patches on the skin.

Abnormal blood clotting function can also lead to this condition. When the number or function of platelets in the body is abnormal, the blood clotting process may be impaired, making it easier for subcutaneous bleeding to occur, which can result in purplish bruises on the thigh.

Certain diseases may also cause easy bruising, such as thrombocytopenia, vitamin C deficiency, or liver disease. If bruises appear frequently without any obvious cause, it is advisable to seek timely medical evaluation to rule out underlying health issues.

In daily life, maintaining healthy habits such as balanced nutrition and moderate exercise can help strengthen blood vessel elasticity and health, thereby reducing the occurrence of bruising.

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Dr. Liu Wenmin
Jun 04, 2025
Can selenium sulfide shampoo be used for a long time?

Seborinum selenium sulfide shampoo is generally not recommended for long-term use.

Seborinum selenium sulfide shampoo is commonly used to treat skin conditions such as dandruff, seborrheic dermatitis, and psoriasis. It works primarily by inhibiting fungal growth and reducing excessive proliferation of skin cells. Short-term use of seborinum selenium sulfide shampoo is usually safe and effective; however, prolonged and excessive use may lead to certain side effects such as skin dryness, irritation, or discoloration.

Due to the irritating and astringent properties of the shampoo, long-term use may damage the skin barrier, causing symptoms like itching and skin fissures. Prolonged use can excessively remove natural oils from the scalp, leading to dryness and flaking, which in severe cases may result in hair loss. Chemical components in the shampoo may interfere with the physiological functions of hair follicles, causing microbial imbalance and inducing folliculitis.

When using seborinum selenium sulfide shampoo, it is important to follow medical instructions regarding frequency and duration of use, and to monitor skin reactions. If symptoms are controlled, the physician may recommend gradually reducing the frequency of application or switching to alternative treatments to avoid over-reliance on a single medication.

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Dr. Liu Wenmin
Jun 04, 2025
Can scabies be cured?

Scabies can usually be cured, but it is important to follow standardized treatment under the guidance of a physician.

Scabies is a contagious skin disease caused by Sarcoptes scabiei mites, and its main symptoms include skin itching, papules, and burrows.Treatment for scabies typically involves topical medications, such as creams or lotions containing acaricidal ingredients, such as 5% sulfur ointment or 1% gamma-hexachlorocyclohexane cream. Oral medications may also be used in combination.

When medical treatment is ineffective, especially when scabies nodules develop, liquid nitrogen cryotherapy may be used to cause necrosis and shedding of the nodular tissue, or surgical excision of the nodules may be performed.During treatment, patients should avoid close contact with others, abstain from sexual activity, and disinfect clothing, bedding, and other personal items by scalding and washing.

As long as patients actively cooperate with treatment, complete the full course of therapy, and maintain good personal hygiene, scabies can be effectively controlled and ultimately cured. Additionally, family members or close contacts should also undergo examination and treatment to prevent disease transmission.

If any physical discomfort occurs, it is recommended to visit a hospital for examination and treatment promptly and actively cooperate with medical advice to avoid delaying the condition.

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Dr. Liu Wenmin
Jun 04, 2025
What causes severe hair loss?

Severe hair loss may be caused by multiple factors. Malnutrition is an important contributing factor, as long-term picky eating or food bias leads to insufficient nutrient intake, affecting the normal growth of hair.

Androgenetic alopecia is the most common type, related to genetic factors and the effects of androgens, manifesting as hairline recession at the temples or thinning on the crown. Alopecia areata may be associated with abnormal immune system attacks on hair follicles. Malnutrition, especially deficiencies in protein, iron, zinc, and vitamin D, can also lead to hair thinning.

Seborrheic dermatitis, a common inflammatory skin condition, may also cause hair loss. Folliculitis, an inflammatory reaction of the hair follicles, can similarly trigger hair loss. Genetic factors, systemic diseases such as lupus erythematosus, and unhealthy lifestyle habits, such as irregular sleep patterns and excessive mental stress, are also possible causes of significant hair loss. Environmental factors, such as ultraviolet radiation, pollution, and stress, should not be overlooked either.

When facing hair loss issues, it is important to consider all the aforementioned factors comprehensively. If necessary, seek timely medical attention at a hospital and consult a dermatologist for professional diagnosis and treatment.

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Dr. Liu Wenmin
Jun 04, 2025
Is blood glucose the same across different age groups?

In general, blood glucose levels are the same across different age groups.

The standard values for normal blood glucose are consistent regardless of age. Specifically, the normal fasting blood glucose range is 3.9-6.1 mmol/L, while blood glucose two hours after a meal should be less than 7.8 mmol/L. These standards apply to people of all age groups, including adolescents and the elderly.

However, considering differences in physical function, health status, and potential complications among various age groups, the blood glucose control targets for people already diagnosed with diabetes may vary by age. For example, older patients with diabetes who also have cardiovascular or cerebrovascular diseases may have relatively relaxed blood glucose control targets in order to avoid adverse reactions such as hypoglycemia.

In daily life, it is recommended to maintain good lifestyle habits, such as balanced diet, regular作息, and appropriate exercise, which can help maintain overall health. Regular monitoring of blood glucose levels is also advised in order to adjust dietary patterns and manage blood glucose levels promptly.

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Dr. Liu Feng
Jun 04, 2025
Can people with high blood sugar eat corn porridge?

In general, people with high blood sugar can consume corn porridge in moderation, but should pay attention to controlling the portion size and choosing whole-grain corn porridge. The specific analysis is as follows:

Corn contains a certain amount of carbohydrates, primarily starch, which has a relatively high glycemic index, meaning it may cause a rapid increase in blood sugar after consumption. However, corn porridge also contains abundant dietary fiber, and moderate consumption can delay sugar absorption, helping to control blood glucose levels. Therefore, it is recommended that individuals with high blood sugar consume corn porridge in moderation.

However, corn porridge does contain a certain amount of sugar, so people with high blood sugar should avoid excessive consumption and should limit each serving to a moderate amount. It is recommended to choose minimally processed whole-grain corn, and to combine it with foods rich in dietary fiber, protein, or healthy fats, such as vegetables, legumes, or nuts, in order to further reduce the overall glycemic index of the meal and help maintain stable blood sugar levels.

In addition, individuals with high blood sugar should regularly monitor their blood glucose levels after consuming corn porridge, in order to adjust their diet and medication as needed. When necessary, they should consult a professional nutritionist or doctor to develop a personalized dietary plan.

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Dr. Liu Feng
Jun 04, 2025
Can Liuwei Dihuang Pills lower blood sugar?

Under normal circumstances, Liuwei Dihuang Pills cannot lower blood sugar levels.

Elevated blood sugar is usually associated with unhealthy eating habits, lipodystrophy syndrome, and other factors. The main ingredients of Liuwei Dihuang Pills include prepared rehmannia root, cornus fruit, and chinese yam, which have the functions of nourishing yin and replenishing the kidneys and warming and invigorating kidney yang. These pills can effectively alleviate symptoms caused by elevated blood sugar such as fatigue, weakness, and soreness and weakness of the waist and knees, but they do not directly lower blood sugar levels.

Liuwei Dihuang Pills are not specifically designed as a medication for lowering blood sugar; their primary function is to nourish kidney yin. Patients with diabetes can use Liuwei Dihuang Pills as an adjunctive treatment, but they should not replace standard antidiabetic medications and lifestyle interventions. When using this medicine, patients should follow the guidance of a qualified physician, and apply it appropriately according to their individual constitution and medical condition, in order to avoid adverse reactions or suboptimal therapeutic effects caused by blind medication use.

In daily life, it is recommended that diabetic patients maintain good lifestyle habits, including dietary control, physical exercise, medication treatment, and other aspects, in order to achieve optimal blood sugar control.

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Dr. Liu Feng
Jun 04, 2025
Can high blood sugar cause diarrhea?

Diarrhea refers to loose or watery stools. Under normal circumstances, high blood sugar itself does not directly cause diarrhea, but a state of high blood glucose may affect the normal function of the digestive system.

When blood glucose levels remain uncontrolled over a long period, it may lead to gastrointestinal dysfunction, further affecting the patient's intestinal flora and causing diarrhea. Secondly, when blood glucose levels are very high, the kidneys attempt to remove the excess sugar through urine, which can lead to dehydration. Dehydration can alter the fluid balance in the intestines and sometimes also cause diarrhea. Additionally, poor blood sugar control may affect the body's metabolism, including electrolyte balance, which can also increase the risk of diarrhea.

If patients with high blood glucose experience symptoms of diarrhea, they should seek medical attention promptly to determine whether it is caused by infection, medication side effects, or other complications, and adjust their treatment plan to improve blood sugar control. At the same time, patients should also pay attention to adjusting their diet and lifestyle, and regularly monitor blood glucose levels to control blood sugar and reduce the occurrence of diarrhea.

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Dr. Liu Feng
Jun 04, 2025