How can you tell if you have a perianal venous thrombosis?
A perianal venous thrombosis usually manifests as a sudden, painful swelling, like one or more lumps or nodules, in the anal area. This swelling at the anus is generally easy to feel and feels like a hard lump ranging from the size of a pea to even a plum. The affected area is often bluish-red or violet in color, which is due to the clotted blood in the vein near the rectum. Usually, there is also surrounding edema, which contributes to the severe pain in the anus due to tissue tension. The lump at the anus can rupture spontaneously or under pressure, meaning it can burst, causing parts of the clot to drain. Often, there are not just one but several lumps or nodules next to each other at the anal margin. Many affected individuals report severe, stabbing pain, especially when sitting or applying pressure to the affected area. In large perianal venous thromboses, an ulcer can develop and eventually the perianal thrombosis may burst, leading to an open wound in the anal area.
The pain usually occurs unexpectedly, often after physical exertion, lifting heavy loads, or strong straining during bowel movements. Unlike hemorrhoids, a perianal venous thrombosis rarely causes anal itching or anal burning and usually does not lead to bleeding at the anus. The symptoms and pain from anal thromboses are typically strongest in the first few days and then gradually decrease as the blood clot dissolves or recedes. It often takes about one to two weeks for the symptoms to fully improve and for the palpable bluish lump at the anus or lower part of the rectum to disappear.
Although the pain usually subsides on its own, the daily life of those affected can be severely impacted by the unpleasant symptoms in the first few days. Therefore, it is advisable to see a doctor if a perianal venous thrombosis is suspected, to obtain an accurate diagnosis and supportive treatment of the anal thrombosis to achieve early relief through appropriate therapy measures.
What are the symptoms of anal venous thrombosis?
The main symptom of an anal venous thrombosis is sudden, sometimes very severe pain caused by the swelling of the blood clot at the anal margin. This lump or nodule at the anus can be accompanied by anal itching, stabbing pain at the anus, anal burning, or a strong feeling of tension or pressure as well as tenderness. Perianal thromboses appear visually at the anal margin or in the anal canal as bluish-violet-red nodules ranging from the size of a pinhead to even a plum. Sometimes several nodules form side by side at the anus. The symptoms of an anal thrombosis develop very suddenly or within a short time. In some cases, the pain can be so severe that sitting becomes unbearable for those affected due to the pressure pain.
In other cases, an anal venous thrombosis occurs without any pain – then the perianal thrombosis can only be diagnosed by the swelling formed at the anus. Affected individuals can almost always feel the swelling at the anus themselves, depending on the exact extent and location of the anal thrombosis, as well as any accompanying swelling or even ulcers.
From the healed lumps or nodules of the anal venous thrombosis, small skin folds can sometimes form at the anus, which are called sentinel folds or marisks. Marisks are generally considered harmless. However, larger marisks can significantly complicate anal hygiene and thereby increase susceptibility to certain proctological diseases such as anal eczema.
Is an anal venous thrombosis considered an emergency?
An anal venous thrombosis is a harmless condition that, although often very annoying and temporarily very painful for those affected, does not pose an acute danger. When spontaneous blood clotting occurs in the veins of the anal area, it is also called thrombosis, but it is generally considered harmless in the perianal region and is therefore not comparable to thromboses in larger blood vessels in the legs or arms, where there is a life-threatening risk of embolism or infarction. An anal venous thrombosis does not mean that the risk of having a stroke or heart attack is increased. Perianal venous thromboses are located directly in the veins under the anal skin and are therefore very superficial. It is, of course, recommended to seek medical advice for a suspected proctological condition, especially if there is severe discomfort at the anus, for a more precise diagnosis and investigations to clarify the cause of the perianal venous thrombosis. If the anal venous thrombosis does not go away, or if an anal venous thrombosis recurs, a doctor’s visit is definitely advisable.
How long does an anal venous thrombosis hurt?
The pain from an anal venous thrombosis is usually strongest in the first few days, especially within the first 48 hours after the clot appears. During this time, the swelling is hard, the lump is easily palpable, and the pain can be described as sharp or pressing, especially when sitting or touching the area.
However, the acute symptoms usually gradually subside after 3 to 5 days as the blood clot slowly dissolves. In most cases, the pain is significantly reduced or completely gone after about 1 to 2 weeks. The exact duration of the pain can vary from person to person, depending on the size of the clot and the individual body's response.
If the symptoms of the perianal thrombosis persist longer or are very intense, a doctor may puncture or remove the clot through a small surgical procedure to provide faster pain relief. Your doctor can also advise you on supportive treatment of an anal venous thrombosis to reduce tissue swelling. Measures such as sitz baths, as well as certain ointments or suppositories, can support the healing process and tissue regeneration in the rectum. Sometimes small skin folds, called sentinel folds or marisks, can form from the healed lumps.
How do the symptoms of a perianal venous thrombosis differ from a perianal abscess?
The symptoms of a perianal venous thrombosis and a perianal abscess can usually be clearly distinguished from each other.
In a perianal venous thrombosis, sudden severe, stabbing pain occurs, often accompanied by one or more small bluish nodular swellings at the anus. Fever or pus discharge is not typical here, as a perianal venous thrombosis is not an infection but a venous blood congestion.
In contrast, an anal abscess, also called a perianal abscess, usually develops slowly with increasing throbbing pain at the anus. Both conditions occur perianally, meaning in the area around the anus. The increasing pain of an anal abscess is often accompanied by a reddened, warm swelling in the anal area. Typical for an anal abscess are also systemic signs of inflammation such as fever and a general feeling of illness, as it is a bacterial infection. Another distinguishing feature between an anal venous thrombosis and an anal abscess is the possible discharge of pus from the perianal abscess. Pus discharge does not occur with an anal thrombosis, as it is not a bacterial-infectious disease. However, a ruptured anal venous thrombosis can also lead to the drainage of the clot and thus blood in the anal area. If a ruptured anal venous thrombosis does not heal well and the wound in the anal area becomes infected by germs or pathogens, an anal abscess can consequently develop. If spontaneous drainage of the perianal abscess occurs, an anal fistula can also develop from the anal abscess. Therefore, if you experience symptoms related to these conditions, a timely visit to the doctor is always advisable to get to the root of your complaints. Early diagnosis of proctological diseases, such as anal abscesses and anal fistulas, usually helps to relieve symptoms of anorectal diseases more quickly and to treat and eliminate the causes as effectively as possible.
What should I do if my anal thrombosis has burst?
If an anal thrombosis bursts, it is usually not a reason to panic. Small bleedings usually occur, often accompanied by a sudden drop in tissue pressure. The severe pain at the anus also subsides as the tissue swelling decreases.
The first step is to gently clean the affected area. It is best to rinse the anus carefully with water to clean the wound and keep it clean. It is important to gently dry the area to avoid further irritation of the sensitive skin around the anus.
A sterile compress or a clean pad between the buttock folds or in the underwear can help catch any bleeding and protect the wound from contamination. Moderate bloody discharge in the following days is normal. However, if the vessels at the affected site do not seal well or if an infection occurs in an open wound at the anus, heavier bleeding can occur, which may require surgical treatment. Wounds at the anus or in the intimate area require particularly thorough and careful aftercare to prevent infections and further complications. To promote the healing process of the burst anal thrombosis and relieve pain, certain suppositories or sitz baths can have a soothing effect. Read more here about the treatment of anal venous thromboses with suppositories.
Despite the spontaneous drainage of the blood clot, you should see a doctor for safety. The doctor can check whether the wound at the anus is healing well and whether there are no complications such as infections or other proctological diseases. The doctor can also give you advice on further wound care or, if necessary, recommend or prescribe a special ointment or suppositories to treat and accelerate healing. It is advisable to closely monitor the healing progress of the wound at the anus in the following days. If you notice signs such as severe redness, persistent pain, or pus formation, this could indicate an infection and thus an anal abscess that requires medical treatment. An anal abscess can develop into an anal fistula, so a medical examination and diagnosis as well as further investigation are definitely recommended even if the anal thrombosis has burst. Read more here about diagnosis and examinations for anal thrombosis in the blog post on anal venous thrombosis doctor.
What to do if the anal venous thrombosis is bleeding?
If pressure is applied to the thrombosis, for example by friction from toilet paper, it can spontaneously open or burst, allowing parts of the blood clot or the entire content of the thrombus to escape externally. The affected person then notices bleeding at the anus. In addition, the pain immediately subsides because the tissue in the anal area is no longer under the tension of the blood clot. The resulting wound usually heals on its own but requires thorough wound care and aftercare. If pathogens enter the wound, the area at the anus can become inflamed and consequently lead to an anal abscess or an anal fistula. Therefore, if the anal thrombosis has burst, you should have the wound at the anus examined by a doctor. This is especially important if your symptoms worsen or additional symptoms appear. Anal venous thromboses can also recur, so it makes sense to inform yourself about the causes of perianal thromboses and about the prevention of perianal thromboses. Find all information here if the anal venous thrombosis keeps coming back. To speed up the healing of the wound at the anus, read our blog post on anal venous thrombosis treatment with suppositories.
Anal venous thromboses can lead to marisks after healing. Experts refer to marisks as excess skin that forms small sentinel folds or flaps in the anal region. Small marisks usually do not require treatment, whereas larger marisks often make hygiene in the anal area difficult and can also lead to painful anal eczema.
How can I relieve the symptoms of a perianal venous thrombosis?
The symptoms of an anal venous thrombosis can be effectively relieved by various measures, even though the discomfort, such as pain at the anus, can be very intense in the first few days. Do not hesitate to seek medical advice for a more precise diagnosis and to explore the cause of the anal venous thrombosis. Relief measures can be taken, especially with certain rectal suppositories, such as CANNEFF® SUP suppositories.
Ointments and suppositories to reduce tissue swelling in the anal area
In some cases, the use of a special ointment with lidocaine or suppositories can effectively relieve the symptoms of anal venous thrombosis. When tissue swelling is promoted and supported, the pain at the anus can be alleviated. These ointments or suppositories usually contain anti-inflammatory or pain-relieving active ingredients and can relieve pain or support the healing process. Read more here about the treatment of anal venous thromboses with suppositories.
Painkillers such as ibuprofen or paracetamol can also help relieve acute pain. They act as both pain relievers and anti-inflammatory agents, helping to reduce overall discomfort. It is important to pay attention to the correct dosage and consult a doctor if in doubt.
Sitz baths with anti-inflammatory additives
Home remedies such as warm sitz baths can initially help reduce pain and swelling at the anus. Sitz baths relax the pelvic floor muscles and promote blood circulation in the anal area, which can support healing and regeneration at the anus. Adding anti-inflammatory additives such as chamomile or oak bark can be especially soothing. However, be aware that using home remedies to treat proctological diseases is not sufficient, and a consultation with a general practitioner or your proctological specialist is always recommended. Read more here about what to expect during diagnosis and examinations at the doctor in the blog post on anal venous thrombosis doctor.
Careful wound care and cleaning at the anus
Wearing loose clothing and underwear can additionally minimize pressure on the affected area of the anal thrombosis or the wound at the anus. A sterile compress or soft gauze bandage in the underwear can help protect the irritated skin in the anal area and absorb any discharge of blood or secretions from the wound at the anus. Regular and careful, gentle cleaning of the anal area is important to keep the sensitive skin around the anus clean without further irritation. This can usually minimize further infections, wound healing disorders, and also prevent secondary diseases at the anus successfully.
From healed anal venous thromboses, so-called sentinel folds can develop. Medical experts refer to this excess skin at the anus as marisks. While smaller marisks usually do not require treatment, larger marisks impair hygiene in the anal area and can also lead to painful anal eczema. Read more about marisks here.
Stool regulation, nutrition, and fluid intake
During bowel movements, you should pay attention to your straining behavior and avoid strong straining due to the anal venous thrombosis, also to avoid further stressing the affected tissue at the anus. A fiber-rich diet combined with adequate fluid intake helps keep stools soft and thus keeps pressure in the pelvic floor and abdominal area as low as possible during toilet use. Above all, avoid further mechanical stress on the anus, such as excessive rubbing with toilet paper after bowel movements or anal intercourse, to avoid further irritating the swelling at the anus.
If the pain is very severe or the symptoms do not subside after a few days, you should see a doctor. In some cases, a small outpatient procedure can remove the blood clot at the anal margin and thus quickly relieve the symptoms of the perianal thrombosis. There are various procedures for surgery of an anal venous thrombosis. Read more here about the treatment of perianal venous thromboses. Here you will find all information about diagnosis and examinations during a doctor’s visit for perianal thrombosis, in the blog post anal venous thrombosis doctor.
