Understanding Unexplained Skin Rashes: Allergies or Infection Concerns?
The body exhibits unexplained erythema that sometimes appears and sometimes disappears? The most recent incident of unprotected sexual intercourse occurred on January 21, 2018. Around February 12, 2018, I developed subtle erythema (systemic, but not including above the neck, the ...
Dr. Wu Yuxin Reply:
It could be urticaria, but without seeing the lesions, it's difficult to confirm. If it is very bothersome, please seek medical attention promptly.[Read More] Understanding Unexplained Skin Rashes: Allergies or Infection Concerns?
Understanding Oral Warts: Symptoms, Treatment, and Risks
Oral warts I have had anal warts that were treated with cryotherapy for two years without recurrence, but recently I have been experiencing a sensation of a foreign body in my throat (I have engaged in oral sex). Could this be warts? Additionally, what are the early symptoms of o...
Dr. Wu Yuxin Reply:
Medical regulations state that "a physician must personally examine a patient before administering treatment or prescribing medication..." Therefore, online diagnosis is also not permissible. If you are experiencing significant distress, it is advisable to seek medical ...[Read More] Understanding Oral Warts: Symptoms, Treatment, and Risks
Is It Pityriasis Rosea or Syphilis? Understanding Skin Conditions
Pityriasis rosea or syphilis? I have type 1 diabetes and around the end of September this year, I noticed an oval-shaped red patch on the left side of my buttock that appeared somewhat dry. Initially, I didn't think much of it, but then similar patches appeared on the right ...
Dr. Wu Yuxin Reply:
Without direct observation, it is uncertain. Syphilis can be confirmed through a blood test.[Read More] Is It Pityriasis Rosea or Syphilis? Understanding Skin Conditions
Can Dermatology Help with Anal Warts? Exploring Cryotherapy Options
Regarding the issue of anal warts and cryotherapy? Hello, doctor. I have been infected with anal condyloma due to same-sex assault. I have already tested negative for HIV and syphilis, but the proctologist has scheduled me for electrosurgery. However, I cannot undergo electrosurg...
Dr. Wu Yuxin Reply:
General dermatology clinics can perform cryotherapy for you, but it may require multiple sessions and may not be easy to eradicate. It is recommended to combine it with special topical medications for better results.[Read More] Can Dermatology Help with Anal Warts? Exploring Cryotherapy Options
Can Oral Sex with a Sex Worker Lead to STDs? Risks Explained
Can you get sick from oral sex? Receiving unprotected oral sex from a sex worker can potentially expose you to several sexually transmitted infections (STIs). The most common STIs that can be transmitted through oral sex include: 1. Gonorrhea 2. Chlamydia 3. Syphilis 4. Herpes s...
Dr. Wu Yuxin Reply:
Both herpes and genital warts are possible.[Read More] Can Oral Sex with a Sex Worker Lead to STDs? Risks Explained
Understanding Pain in Oral Syphilis: Primary vs. Secondary Stages
Characteristics of Oral Syphilis In the early stage of oral syphilis, lesions may not necessarily cause pain. However, in the secondary stage of syphilis, lesions can sometimes be painful or cause discomfort.
Dr. Wu Yuxin Reply:
No, usually there are no symptoms. Please consult an infectious disease specialist as soon as possible.[Read More] Understanding Pain in Oral Syphilis: Primary vs. Secondary Stages
Understanding Stretch Marks: Are They Wounds and Can They Transmit Viruses?
Issues related to groin discomfort? Are my stretch marks in the groin area considered a type of wound? Is it possible for stretch marks to allow viruses to enter, such as HIV or syphilis? Please help me with this, thank you.
Dr. Wu Yuxin Reply:
Based on the literal description, it is not possible to confirm the condition without actually seeing the lesion. It is recommended to have a physician evaluate it for an accurate diagnosis.[Read More] Understanding Stretch Marks: Are They Wounds and Can They Transmit Viruses?
Understanding Small Bumps Under the Foreskin: Causes and Concerns
There are a lot of small bumps on the foreskin? Hello, doctor. I have developed clusters of tiny blisters inside my foreskin, much smaller than sesame seeds. They are not painful or itchy, and I noticed them about three weeks ago. I had previously visited sex workers, but I alway...
Dr. Wu Yuxin Reply:
Based on the literal description, it is not possible to confirm the condition without actually seeing the lesion. It is recommended to have a physician evaluate it for accurate diagnosis.[Read More] Understanding Small Bumps Under the Foreskin: Causes and Concerns
Late-Stage Syphilis: Why RPR and VDRL Tests May Show Negative Results
Can late-stage syphilis be undetectable in tests? (2) 1. The VDRL (Venereal Disease Research Laboratory) agglutination test typically becomes positive about 4 to 6 weeks after infection or 1 to 3 weeks after the onset of initial symptoms. In secondary syphilis, it often maintains...
Dr. Wu Yuxin Reply:
If there is an infection but no treatment is administered, the RPR (Rapid Plasma Reagin) test will not decrease. If repeated tests consistently show negative results, it should indicate that there is no infection.[Read More] Late-Stage Syphilis: Why RPR and VDRL Tests May Show Negative Results
Why Late-Stage Syphilis Tests May Yield False Negatives
Can late-stage syphilis be undetectable in tests? 1. The VDRL (Venereal Disease Research Laboratory) agglutination test typically becomes positive approximately 4 to 6 weeks after infection or 1 to 3 weeks after the onset of initial symptoms. In secondary syphilis, it often maint...
Dr. Wu Yuxin Reply:
RPR/VDRL are both tests that show elevated values during an infection, which will gradually decrease with treatment, but they may not return to zero. Syphilis typically does not have a prolonged window period as you mentioned.[Read More] Why Late-Stage Syphilis Tests May Yield False Negatives
Unexplained Skin Wounds: Possible Causes and Concerns for Diagnosis
Unexplained skin lesions? On June 25, I suddenly discovered an unknown wound on my chest while taking a shower, and it was bleeding. Afterward, the wound scabbed over, but every time I showered, the scab would fall off, causing the wound to bleed again. I initially didn't th...
Dr. Wu Yuxin Reply:
It is recommended to see a breast surgeon as soon as possible to confirm whether there are any lesions.[Read More] Unexplained Skin Wounds: Possible Causes and Concerns for Diagnosis
Assessing Infection Risks from Blood-Stained Gauze After Injections
Infection Risk Inquiry (3) Dear Dr. Wu, Thank you for your previous response; I have greatly benefited from it. I would like to extend my inquiry regarding a situation that occurred after I received an injection at a general medical facility. After the injection, the nurse hande...
Dr. Wu Yuxin Reply:
It should be impossible for a nurse to negligently reuse a used gauze pad; you are overthinking it, and I haven't heard of such an occurrence.[Read More] Assessing Infection Risks from Blood-Stained Gauze After Injections
Risk of STIs from Contact with Shared Bathroom Surfaces
The penis foreskin comes into contact with the bathroom sink? Hello Dr. Wu: I live with two male roommates, and we share a bathroom. This evening while taking a shower, the foreskin of my penis accidentally came into contact with the ceramic surface of the bathroom sink. Since th...
Dr. Wu Yuxin Reply:
Cauliflower is possible, while the others are unlikely.[Read More] Risk of STIs from Contact with Shared Bathroom Surfaces
Risk of HIV and STIs from Basketball Injuries: What You Need to Know
Cut or laceration from playing basketball? Dear Dr. Wu, Today, I played basketball and my right index finger was scratched by the opponent's watch or nail (I'm not sure which). It resulted in a small bleeding wound (approximately 0.1 cm). Since I am unaware of the oppo...
Dr. Wu Yuxin Reply:
1. It should not happen. 2. I have not heard of it.[Read More] Risk of HIV and STIs from Basketball Injuries: What You Need to Know
Can Toilet Splashing Cause STDs? Understanding the Risks
Toilet flush splash? Hello, Doctor: Today, I used a public restroom with partitions. After finishing urinating, I accidentally pressed the flush handle before pulling up my pants, and it seems that the water from the toilet splashed onto my penis. Since the people using public re...
Dr. Wu Yuxin Reply:
I cannot.[Read More] Can Toilet Splashing Cause STDs? Understanding the Risks
Can a Drawer Cut Lead to Skin Infections? Expert Insights
Laceration on the thigh skin caused by a wooden drawer? Hello Dr. Wu: Recently, I was helping a friend move, and while moving a wooden cabinet, I accidentally cut my right thigh on the sharp edge of a drawer. There is a noticeable red cut mark, and I feel a little bit of bleeding...
Dr. Wu Yuxin Reply:
Bacterial infections are possible, but HPV, syphilis, and HIV are not.[Read More] Can a Drawer Cut Lead to Skin Infections? Expert Insights
Concerns About Insect Contact with Skin Wounds: Infection Risks and Advice
Insect crawling over a skin wound? Hello Dr. Wu, This afternoon, I accidentally cut my right middle finger with a sewing needle, resulting in a small wound that is red and swollen but not significantly bleeding. I cleaned the wound and applied a topical ointment (similar to Neos...
Dr. Wu Yuxin Reply:
Bacterial infections are possible, but HPV, syphilis, and HIV are not.[Read More] Concerns About Insect Contact with Skin Wounds: Infection Risks and Advice
Risk of STD Transmission from Bed Contact: What You Need to Know
Penis contact with another person's bedding? Hello Dr. Wu: There have been reports about travelers sleeping on hotel beds that were not properly disinfected, leading to infections such as sexually transmitted diseases (STDs) like HPV. In my personal situation, I slept at a f...
Dr. Wu Yuxin Reply:
1. No. 2. I haven't heard of it.[Read More] Risk of STD Transmission from Bed Contact: What You Need to Know
Understanding the Risks of Skin Contact and STDs: A Dermatologist's Insight
Skin contact of the fingers and sexually transmitted diseases? Hello Dr. Wu, I would like to inquire about the risks of finger contact with sexually transmitted infections (STIs) such as HIV, HPV, and syphilis. I work in a cleaning-related job. Today, while cleaning dirt off a w...
Dr. Wu Yuxin Reply:
1. No. 2. No. 3. I haven't heard of it.[Read More] Understanding the Risks of Skin Contact and STDs: A Dermatologist's Insight
Can Splashing Urine in Public Restrooms Lead to STIs?
Splashed with urine from a public restroom? Hello Dr. Wu: I have a question regarding using a public restroom for urination. I use a toilet, and there was urine from the previous user in the bowl (yellow with some foam). I urinated directly afterward, and some of the previous use...
Dr. Wu Yuxin Reply:
I have never encountered that.[Read More] Can Splashing Urine in Public Restrooms Lead to STIs?