Recurring Perineal and Anal Numbness: Causes and Solutions - Neurology

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Intermittent numbness in the perineal and anal area?


Hello Doctor, on March 23rd, I experienced intermittent numbness in the right perineum and anal area, which has been continuous.
The next day, I visited a neurologist who said I could walk on my toes, which did not indicate cauda equina syndrome.
The doctor arranged for X-rays and electromyography (EMG) tests and prescribed vitamin B, antibiotics, and anticonvulsants.
The following week, the doctor informed me that the EMG showed slight abnormalities but appeared to be okay, and the X-ray results were normal.
Later, I was given another week’s supply of medication.
After taking the medication for two weeks, the numbness disappeared; however, on April 15th, the numbness returned and has persisted until now.

I would like to ask the doctor what I should do next.
I am unsure if the numbness is due to prolonged sitting, poor posture, a long-standing anal fissure, or possibly an infection from applying medication to the anal area.
Since I do not understand why this situation suddenly occurred, I have been searching for answers.
Aside from the numbness, I can engage in normal activities.
Can I rely on exercise for self-healing, or are there other methods for recovery? Additionally, I am uncertain whether I should consult traditional Chinese medicine, seek acupuncture or massage therapy, or return to a large hospital for further examination.
I would appreciate your advice, and thank you for your hard work, Doctor.

Niming, 30~39 year old female. Ask Date: 2020/04/24

Dr. Jiang Junyi reply Neurology


Hello: The tissues around the anus are primarily innervated by the pudendal nerve plexus and the coccygeal nerve.
Various factors can lead to abnormal nerve sensations.
If the symptoms are intermittent, it may be worth considering poor posture as a potential cause of nerve compression.
It is recommended to consult a rehabilitation physician to discuss posture changes and examinations.
Additionally, you may consider supplementing with B vitamins in your diet.
I suggest you consult with both a rehabilitation specialist and a colorectal physician for further evaluation and treatment.
Wishing you good health and peace.
Dr.
Jiang from the Department of Neurology cares about you.

Reply Date: 2020/04/24

More Info


Understanding recurring perineal and anal numbness can be complex, as it may stem from various underlying causes. Given your symptoms and the medical evaluations you've undergone, let's explore potential reasons for your numbness and discuss possible solutions.


Possible Causes of Numbness
1. Nerve Compression or Irritation: Numbness in the perineal and anal regions can often be attributed to nerve compression or irritation. This could be due to prolonged sitting, poor posture, or even conditions like herniated discs that may affect the nerves supplying these areas. The fact that your symptoms improved with medication suggests that there might be a neurological component involved.

2. Muscle Tension: Chronic muscle tension in the pelvic floor or surrounding areas can lead to nerve compression, resulting in numbness. If you have a history of anal fissures, the associated muscle spasms could contribute to this tension.

3. Circulatory Issues: Reduced blood flow to the area, possibly due to prolonged sitting or vascular issues, can also cause numbness.
4. Infection or Inflammation: If you have been using topical medications for your anal fissures, there is a possibility of irritation or allergic reactions that could lead to inflammation and subsequent numbness.

5. Underlying Conditions: Conditions such as diabetes, multiple sclerosis, or other neurological disorders can also manifest as numbness in various body parts, including the perineal area.


Recommended Actions
1. Physical Therapy: Engaging in physical therapy, particularly pelvic floor therapy, can be beneficial. A trained therapist can help you with exercises to strengthen and relax the pelvic floor muscles, which may alleviate nerve compression and improve blood flow.

2. Posture and Ergonomics: Assess your sitting habits and posture. Ensure that your workspace is ergonomically designed to reduce pressure on the pelvic area. Taking regular breaks to stand and stretch can also help.

3. Exercise: Regular physical activity can improve circulation and nerve function. Focus on low-impact exercises such as walking, swimming, or yoga, which can enhance flexibility and reduce muscle tension.

4. Medication Review: Since your symptoms improved with medication, it might be worth discussing with your doctor the possibility of continuing or adjusting your current medication regimen. Sometimes, a longer course of treatment may be necessary.

5. Follow-Up with Specialists: If symptoms persist, consider returning to a neurologist or seeking a second opinion. A comprehensive evaluation, including MRI or further nerve conduction studies, may be warranted to rule out any serious underlying conditions.

6. Alternative Therapies: If you are open to it, acupuncture or chiropractic care may provide relief. However, ensure that any practitioner you consult is experienced in treating nerve-related issues.

7. Avoid Self-Diagnosis: While it’s tempting to attribute your symptoms to lifestyle factors, it’s crucial to rely on professional evaluations. Self-diagnosing can lead to unnecessary anxiety or mismanagement of your condition.


Conclusion
In summary, recurring numbness in the perineal and anal regions can arise from various factors, including nerve compression, muscle tension, and underlying medical conditions. A multifaceted approach involving physical therapy, lifestyle modifications, and possibly further medical evaluation is recommended. It’s essential to maintain open communication with your healthcare providers to ensure that you receive appropriate care tailored to your specific needs. If your symptoms persist or worsen, do not hesitate to seek further medical advice.

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