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Yu Xu Chao
Colorectal Surgery
About me
Chief physician, master's degree graduate, engaged in colorectal surgery for six years, proficient in using integrated traditional Chinese and Western medicine to treat colorectal diseases.
Proficient in diseases
Has rich clinical experience in anal diseases, specializes in using a combination of Chinese and Western medicine methods to treat internal hemorrhoids, external hemorrhoids, mixed hemorrhoids, anal fissures, anal fistulas, perianal abscesses, rectal prolapse, anal stenosis, constipation, inflammatory bowel disease, colorectal tumors, etc.
Voices
Is an anal fistula close to the anus considered high or low position?
In general, anal fistulas close to the anus are considered low anal fistulas. Clinically, anal fistulas are classified as either high or low based on the levator ani muscle as the boundary. Those located above the levator ani muscle are considered high anal fistulas, while those below are considered low anal fistulas. Clinically, the treatment for anal fistulas primarily involves surgical intervention. Options include fistulectomy, which involves the removal of the internal opening and the fistula tract. Post-surgery care may include the use of anal cleansing agents, red oil gauze strips, and golden ointment for dressing changes to promote wound healing. It is important to maintain smooth bowel movements and consume a light diet. High, complex anal fistulas may easily damage the anal sphincter or even the anorectal ring, leading to fecal incontinence. Therefore, during surgery, the thread hanging method may be chosen to avoid excessive damage to the anal sphincter.
The difference between internal and external hemorrhoids
Internal hemorrhoids are located above the dentate line in the anal canal, at the end of the rectum, and are innervated by the autonomic nervous system. Clinically, they are mainly characterized by intermittent, painless rectal bleeding. The blood is bright red, often dripping or spraying after defecation. If internal hemorrhoids worsen, they can prolapse and even become strangulated and edematous, causing anal swelling and pain. External hemorrhoids, on the other hand, are located below the dentate line in the anal canal, and are innervated by the spinal nerves, making them more sensitive to pain. Clinically, they are categorized into skin tag-type external hemorrhoids, varicose vein-type external hemorrhoids, inflammatory external hemorrhoids, and thrombotic external hemorrhoids. Skin tag-type and varicose vein-type external hemorrhoids primarily cause a sensation of a foreign body and itching in the anus, while inflammatory or thrombotic external hemorrhoids can lead to an increase in perianal secretions and anal swelling and pain, necessitating prompt surgical removal of the external hemorrhoids.
Can internal hemorrhoids burst by themselves?
Internal hemorrhoids that prolapse should not be burst forcibly. As internal hemorrhoids are located at the anus, they are continuously exposed to contaminants from fecal and secretion matter over time. If the prolapsed hemorrhoids burst, it could lead to local infections and even necrosis. Therefore, do not burst prolapsed hemorrhoids, but rather, try to push them back into the anus. If they cannot be reinserted, it is recommended to opt for surgical treatment early to avoid rupture or strangulated edema, which can lead to swelling, pain, or necrosis in the anal area. Surgical options include hemorrhoidal banding, PPH, or TST procedures. Post-surgery, treatments may include the use of anal washes, red ointment gauze, aureomycin ointment, etc. Moreover, patients should eat a light diet, maintain smooth bowel movements, and regularly perform pelvic floor exercises.
How to eliminate external hemorrhoids with a fleshy lump?
External hemorrhoids involving a flesh mass are considered organic lesions. Complete removal typically requires hemorrhoid surgery, such as excision of external hemorrhoids or debridement surgery. Postoperative care includes changing dressings using products like anal washes, red oil gauze strips, and golden ointment. It is also important for patients to develop good bowel habits post-surgery, maintain smooth bowel movements, and avoid prolonged or excessive straining to facilitate recovery and prevent recurrence of external hemorrhoids. If treated solely with conservative medication, the flesh mass of external hemorrhoids can only be reduced, not completely eliminated. Inappropriate diet or abnormal bowel movements can lead to an increase in the size of external hemorrhoids, potentially causing inflammatory edema or thrombosis, which can result in significant anal discomfort and severely impact the patient’s normal life. Therefore, the treatment approach for external hemorrhoid flesh mass should be based on the severity of the condition.
Can a perianal abscess that is draining pus heal by itself?
Perianal abscesses cannot heal on their own after they spontaneously rupture and discharge pus, which can lead to the development of anal fistulas. This is mainly due to infection of the anal glands that initially causes swelling and lumps around the anus. Once these rupture and release pus, they can form channels that develop into anal fistulas, causing repeated perianal swelling, pain, and the discharge of pus and blood. In this case, it is advised to visit the proctology department of a hospital as soon as possible for a perianal MRI scan to determine the location of the infection and the direction of the fistula tract, followed by determining the surgical method. After the rupture and discharge of a perianal abscess, a definitive one-time surgical procedure is required to treat the abscess to prevent the potential development of a fistula or a complex, high fistula, which could cause significant damage to the patient and increase the complexity of later surgeries.
Differences between minimally invasive surgery and traditional surgery for perianal abscess
In clinical practice, perianal abscesses are primarily due to infection and inflammation of the anal glands, which then leads to the formation of red and swollen masses around the anus, causing pain and swelling near the anus. If not treated surgically in a timely manner, it can lead to necrotizing fasciitis or anal fistulas. Minimally invasive surgery for perianal abscesses mainly aims to minimize damage to the anal sphincter during the procedure. Techniques such as loop drainage can be employed to preserve it, whereas traditional surgery generally involves larger incisions, but provides better drainage and has a lower recurrence rate post-operatively. However, leakage or moisture in the anal area can occur after traditional surgery. For minimally invasive surgery for perianal abscesses, there is a relatively higher recurrence rate since the drainage may not be as effective. However, the integrity of the anus post-surgery is better preserved and incidents of leakage are less frequent. The choice of surgical method should still be based on the severity of the perianal abscess.
Can internal hemorrhoids be treated with wet compresses?
After prolapse of internal hemorrhoids, moist compresses can be applied, but the therapeutic effect of moist compresses is not significant. The prolapse of internal hemorrhoids mainly occurs when the anal cushion pathologically enlarges and shifts downward, leading to the prolapse. If the prolapsed hemorrhoids cannot be retracted back into the anus, this can lead to incarcerated edema, causing swelling and pain around the anus. If the incarceration lasts too long, it can induce local thrombosis or even necrosis. In such cases, it is recommended to opt for surgical treatment as soon as possible. Common surgical methods include internal hemorrhoid ligation, internal hemorrhoid excision, PPH (Procedure for Prolapse and Hemorrhoids), or TST (Transanal Hemorrhoidal Dearterialization). After surgery, it is advisable to use anal washes or potassium permanganate solutions for sitz baths, and then apply topical treatments such as hemorrhoid creams, red oil gauze strips, and yellow ointments to promote postoperative recovery. Moreover, patients should develop good bowel habits after surgery to maintain smooth bowel movements, which further aids recovery. (Under the guidance of a doctor for medication use)
Can external hemorrhoids be punctured?
External hemorrhoids should not be punctured because they are located at the anus, which is at the end of the digestive tract and often contaminated by feces and excretions. If punctured, it can easily lead to local infection, causing pain and increased secretion, and worsening necrosis of the external hemorrhoids. Therefore, external hemorrhoids should be treated as soon as possible with hemorrhoidectomy, rather than being punctured by oneself. After surgical treatment, it is also necessary to use anal cleansers, red oil gauze, and golden ointment for dressing changes to promote the healing of the wound. Moreover, patients should maintain smooth bowel movements to avoid hard and dry stools or frequent diarrhea. In terms of diet, it is advisable to consume foods rich in roughage to ensure smooth bowel movements and to avoid fishy seafood and similar foods.
How to relieve the pain of external hemorrhoids?
When there is pain in an external hemorrhoidal tag, it is often due to inflammatory edema or the formation of a thrombus, leading to pain. In such cases, it is advisable to first use an anal cleansing agent or a potassium permanganate solution for a sitz bath after defecation. The duration of the sitz bath should be controlled between five to ten minutes, which can effectively reduce swelling and relieve pain. After the sitz bath, applying external remedies such as Yellow Ointment or Musk Hemorrhoids Cream can also help reduce swelling and alleviate pain. For particularly severe pain, directly using diclofenac sodium suppositories inserted into the anus can provide anti-inflammatory and analgesic effects. Additionally, for external hemorrhoids with inflammatory edema, it is also necessary to combine this with oral diosmin tablets to relieve discomfort. However, if the external hemorrhoidal tag remains swollen for a long period or if the thrombus does not resolve, it is advisable to consider early surgical excision of the external hemorrhoids, followed by diligent postoperative dressing changes.
How to determine if you have an anal fistula
First, you can judge whether you have an anal fistula based on symptoms. Patients with anal fistula often experience recurrent perianal swelling and pain, as well as discharge of pus and blood, which may also have a foul odor, with secretion often found on their underwear. In such cases, patients should consider whether they have an anal fistula. Additionally, patients with anal fistulas in the early stages often have perianal abscesses, which generally tend to form fistulas after the abscess ruptures spontaneously or is surgically drained. Patients can also visit the colorectal surgery department of a hospital for a digital rectal examination, where the fistula tract and the internal opening can be felt. MRI scans of the perianal region can also be performed to determine the type and severity of the anal fistula. Clinically, once an anal fistula is detected, it is advisable to opt for fistula excision surgery to completely cure the anal fistula by removing the internal opening and the fistula tract. Post-surgery, it is essential to persist with dressing changes to avoid wound infection and bleeding.