Understanding Visual Perception: Why We Sense Depth and Hidden Objects
Eyes and Brain 2 Doctor, I feel that because our eyes perceive things in three dimensions, we tend to think that objects that are blocked have something behind them. However, there are also flat surfaces, like in the game Counter-Strike, where the walls appear three-dimensional, ...
Dr. Gao Chunde Reply:
The relevant principle can be referenced from 3D Magic Eye, where the eyes integrate flat images in the brain to perceive three-dimensional images.[Read More] Understanding Visual Perception: Why We Sense Depth and Hidden Objects
Understanding Painful Bump on the Back of the Head: When to Seek Help
A protrusion at the back of the head? Hello, I discovered a hard lump on the lower left side of the back of my head three days ago. It hurts when I press it lightly, and sometimes it also hurts when I walk too quickly or turn my head. It’s very uncomfortable, especially when I li...
Dr. Jiang Hezhou Reply:
Dear Miss Xiao Feng, Regarding your discomfort symptoms, physical examination is very important. It is recommended that you visit a neurology clinic for further evaluation and management. Thank you for your attention. Sincerely, Changhua Hospital.[Read More] Understanding Painful Bump on the Back of the Head: When to Seek Help
Understanding Body Vibrations: Are They a Form of Palpitations?
Body vibrations, are they considered palpitations? Hello Doctor, I previously asked about the issue of body vibrations. All health checks and tests have not revealed any problems, but I occasionally feel vibrations in my body. I had a period where it improved, but recently it has...
Dr. Lin Zijing Reply:
The body experiences a sensation of vibration that coincides with the heartbeat, which feels like palpitations. However, true palpitations usually involve an increased heart rate and may sometimes be accompanied by shortness of breath or chest tightness. Your sensation of palpita...[Read More] Understanding Body Vibrations: Are They a Form of Palpitations?
Understanding Concussions and Seizure Risks After Head Injuries
Concussion and epilepsy..? I would like to ask a question. About six months ago, I hit the back of my head quite hard. At that moment, I felt a bit dizzy, but my consciousness was clear because I was still able to write the exam questions (the incident happened after class). I ju...
Dr. Lin Zijing Reply:
A concussion refers to a temporary loss of function in the brain following a blow to the head, which may manifest as disturbances in consciousness, vision, balance, and other functions. These changes are fully reversible, and clinical and imaging examinations typically do not rev...[Read More] Understanding Concussions and Seizure Risks After Head Injuries
Managing Chronic Vascular Inflammation-Induced Headaches in Elderly Patients
Headache caused by chronic vascular inflammation? My father is 93 years old. In mid-January, he was diagnosed with chronic vasculitis, which is common in elderly males, due to headaches. The symptoms included pain on the right side of his head, extending from the temple along the...
Dr. Ye Boshou Reply:
Hello: 1. Medication can be reduced, and then an attempt to discontinue can be made (one tablet daily for one week, then one tablet every other week → discontinue). 2. CRP or ESR can be used as a reference.[Read More] Managing Chronic Vascular Inflammation-Induced Headaches in Elderly Patients
Understanding Sudden Backward Falls and Vacant Stares in Children
A child suddenly falls backward and has a blank stare? Children suddenly falling backward and appearing dazed, only to regain awareness after a while, has occurred many times this semester. I am very concerned and would like a prompt response.
Dr. Gao Chunde Reply:
It may be an epileptic seizure; you can consult a pediatric neurologist or a neurologist for further examination and treatment.[Read More] Understanding Sudden Backward Falls and Vacant Stares in Children
Managing Acute Relapses in Multiple Sclerosis: Steroid Treatment Insights
Acute treatment of multiple sclerosis? Hello, my sister's multiple sclerosis has relapsed again, and I'm very worried. I would like to ask you about something. Everyone online says that for acute episodes, high-dose steroids should be injected, so we went to the emergen...
Dr. Gao Chunde Reply:
The physician confirms the presence of objective evidence of symptoms with acute exacerbation and may administer high-dose intravenous corticosteroids for three to seven days.[Read More] Managing Acute Relapses in Multiple Sclerosis: Steroid Treatment Insights
Managing Multiple Sclerosis Relapses: Steroid Treatment Insights
Multiple Sclerosis Hello, my sister's multiple sclerosis has relapsed again, and I am very worried. I would like to ask you about something. Everyone online says that for acute episodes, high-dose steroids should be injected, so we went to the emergency room. After the injec...
Dr. Huang Yongquan Reply:
Hello: In response to your question, if a diagnosis of multiple sclerosis is confirmed, the standard treatment involves administering high-dose corticosteroids in the morning and evening, or using plasmapheresis to adjust the immune system. During the acute phase, continuous trea...[Read More] Managing Multiple Sclerosis Relapses: Steroid Treatment Insights
Understanding Sudden Hand Numbness: Causes and Concerns
Sudden hand numbness!!!??? Hello, Chief Physician. After some changes at home, I suddenly felt numbness in my hand today, but it’s not complete weakness or loss of sensation. When I yawn, sometimes I feel tightness in my facial and oral area. Occasionally, while walking, I feel a...
Dr. Gao Chunde Reply:
These symptoms are not very specific. It is advisable to maintain a regular lifestyle, ensure adequate rest, and monitor if these symptoms persist. If problems continue, you may seek assistance from a physician in person at a hospital.[Read More] Understanding Sudden Hand Numbness: Causes and Concerns
Understanding Persistent Dizziness and Headaches: When to Seek Help
Initially, there was dizziness, which progressed to dizziness and headache after a few days? Hello Doctor, I have never experienced dizziness or headaches before! At the beginning of January this year, I suddenly felt a bit dizzy while reading (not the spinning type) and it laste...
Dr. Lin Zijing Reply:
Head pain is primarily felt in the walls of blood vessels, scalp nerves, and muscles. Brain imaging studies can only rule out certain conditions (such as larger tumors or bleeding) but cannot diagnose the cause of headaches. Most headaches are classified as tension-type headaches...[Read More] Understanding Persistent Dizziness and Headaches: When to Seek Help
Understanding Unusual Walking Sensations: Neurological Insights
Hello doctor, I sometimes feel a jolt up and down while walking? I previously experienced a sensation while walking where it felt like my feet were bouncing up and down, as if they were sinking into the ground and then rebounding back to their original position. This sensation so...
Dr. Lin Zijing Reply:
This is part of vertigo, which occurs due to instability in the function of one of the semicircular canals responsible for balance. As long as it does not affect daily life or gait, it is not a concern.[Read More] Understanding Unusual Walking Sensations: Neurological Insights
Understanding Left Buttock Pain Radiating to the Thigh: When to See a Specialist
Pain in the left buttock radiating to the posterior thigh? After catching a cold before the Lunar New Year, I developed a symptom of sharp pain in my left buttock for reasons unknown. Although the cold has resolved, the sharp pain persists, especially noticeable when I sneeze. Ab...
Dr. Ye Boshou Reply:
Hello: It may be caused by sciatica or lumbar nerve compression, so consulting a neurologist for diagnosis is appropriate.[Read More] Understanding Left Buttock Pain Radiating to the Thigh: When to See a Specialist
Understanding Nerve Issues: Causes and Symptoms of Numbness and Weakness
Paralysis Doctor, I have been experiencing symptoms that started with numbness in two fingers on each hand, but it has since progressed to numbness in all my fingers. Currently, both of my palms feel numb, and my toes are also numb, extending to the soles of my feet. The most sev...
Dr. Gao Chunde Reply:
The emergence of new symptoms indicating disease progression suggests that there are unresolved issues. It is important to return to the outpatient clinic as soon as possible to inform your physician of your current condition. This will allow them to arrange appropriate managemen...[Read More] Understanding Nerve Issues: Causes and Symptoms of Numbness and Weakness
Post-Stroke Language Issues: Understanding and Managing Cognitive Changes
excuse me? One month after a mild brain hemorrhage, my 70-year-old mother, who lives in southern Taiwan, has been experiencing difficulty in articulating her thoughts and has been repeating questions. In mid-January, during a cold spell, she suffered a mild brain hemorrhage. Curr...
Dr. Lin Zijing Reply:
It is recommended that you take your mother back to the neurology outpatient clinic for a neurological examination, as her inability to provide complete responses and the repetition of the same questions may indicate an issue with the language area in the left hemisphere of the b...[Read More] Post-Stroke Language Issues: Understanding and Managing Cognitive Changes
Understanding Numbness and Rapid Heartbeat: Neurological Concerns Explained
Numbness in the hands and feet, rapid heartbeat? Hello Doctor: Recently, I have been experiencing intermittent numbness in my limbs, primarily in my left hand and foot. Today, the numbness is particularly severe, affecting the entire left side of my body, from head to toe. This w...
Dr. Gao Chunde Reply:
If your symptoms have worsened compared to when you visited the neurologist, or if they continue to deteriorate despite medication, it is advisable to return to the hospital for further evaluation. If the neurologist's objective neurological examination aligns with your clin...[Read More] Understanding Numbness and Rapid Heartbeat: Neurological Concerns Explained
Understanding Frequent Foot Cramps: Causes and Specialist Guidance
Leg cramps are common? Hello Dr. Liu, I have been struggling with frequent cramps in the front half of my feet for many years, and the frequency has been increasing, especially after standing for long periods at work. My feet feel heavier, and even slight movements can trigger c...
Dr. Liu Zhiyang Reply:
Foot cramps are associated with various factors such as poor blood circulation, calcium deficiency, endocrine issues, and electrolyte imbalances. It is recommended to visit a neurology or internal medicine outpatient clinic for an evaluation of the underlying causes. Sincerely, D...[Read More] Understanding Frequent Foot Cramps: Causes and Specialist Guidance
Managing Neck Pain and Tinnitus: A Guide for Long-Distance Drivers
Neck pain accompanied by chronic tinnitus? Hello Dr. Lin: I used to be a small truck driver and often had to carry heavy loads up and down stairs. Three years ago, I became a professional large truck driver, and I can get in and out of the truck dozens of times a day—I'm 171...
Dr. Lin Zijing Reply:
1,2. Occupational activities that involve frequently lifting heavy objects and prolonged driving can lead to poor posture or degeneration and deformity of the cervical and lumbar spine, which may compress nerves. The most common symptoms include soreness, numbness, and pain in th...[Read More] Managing Neck Pain and Tinnitus: A Guide for Long-Distance Drivers
Dizziness When Lying on Left Side: Possible Causes and Solutions
Dizziness when lying on one's side? Hello Doctor: A few months ago, one morning when I woke up and turned to my left side at a 90-degree angle, I suddenly felt a wave of dizziness and the room spinning. I quickly turned back to a lying position and returned to normal. After ...
Dr. Gao Chunde Reply:
Benign Paroxysmal Positional Vertigo (BPPV) typically resolves on its own after a day or two of rest for young individuals, but it is prone to recurrence. If symptoms are severe or become more pronounced, it is advisable to consult a neurologist or an otolaryngologist for further...[Read More] Dizziness When Lying on Left Side: Possible Causes and Solutions
Understanding Chronic Headaches: Causes, Symptoms, and Treatments
Chronic headache Hello Dr. Lin, I have some issues I would like to consult you about. I have been experiencing headaches for about 10 years. Initially, the pain was localized in the back of my head, but now it has extended to the top of my head. Generally, the pain is on the left...
Dr. Lin Zijing Reply:
It sounds like a vascular headache, which is caused by the excessive dilation of extracranial arteries (such as the cranial arteries, occipital artery, and frontal artery). The main symptom is severe pulsating headache on one side of the head. Some individuals may have triggers s...[Read More] Understanding Chronic Headaches: Causes, Symptoms, and Treatments
Understanding Nerve Pain in the Back and Chest: Causes and Solutions
Nerve pain in the back and chest? I experience severe nerve pain in the upper back area under my right armpit. During the pain episodes, there are times when I am unable to move or breathe. When the pain is less intense, I still feel pain when I inhale. The frequency of these epi...
Dr. Lin Zijing Reply:
These pains need to be differentiated from pleural diseases, intercostal muscle diseases, intercostal nerve diseases, and spinal nerve diseases. Generally speaking, neuropathic pain is more likely to present with sensations such as stabbing, tingling, cutting, burning, or electri...[Read More] Understanding Nerve Pain in the Back and Chest: Causes and Solutions