Post-Appendectomy Pain: Complications After Surgery - Surgery

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One month after appendectomy, sudden pain in the lower right abdomen?


Hello, doctor.
I was diagnosed with acute appendicitis on June 17 and underwent surgery that same night.
There was not much pus in my abdomen, so no drainage tube was inserted.
The surgeon only cleaned the pus during the operation.
About two weeks post-surgery, my bloating significantly improved, and the doctor said I could eat normally, with no abdominal pain.
However, about a month after the surgery, around July 11, I suddenly experienced intermittent sharp pain in the lower left abdomen where the appendix was located.
I immediately went to the hospital for an examination.
Blood tests indicated inflammation, but my white blood cell count was normal.
A CT scan did not reveal any issues.
I received antibiotics for three days and took pain medication.
Now, whenever I sit down, lie on my side (especially on my right side), or engage in more vigorous activities, I experience sharp pain in the lower right abdomen.
I would like to ask the doctor what this issue might be and if there are any solutions.

Yan Yan, 30~39 year old female. Ask Date: 2022/07/14

Dr. Xu Kaixi reply Surgery


Based on your description, this is postoperative neuropathic pain following acute appendicitis.
Currently, only conservative treatment is available, which includes the use of oral analgesics.

Reply Date: 2022/07/14

More Info


Post-appendectomy pain can be a complex issue, especially when it occurs weeks or even months after the surgery. It is not uncommon for patients to experience discomfort or pain after an appendectomy, and understanding the potential causes and management strategies is essential for recovery.

Firstly, it’s important to recognize that some degree of pain and discomfort following an appendectomy is normal. The surgery involves cutting through layers of abdominal tissue, which can lead to inflammation and irritation in the surrounding areas. This can manifest as pain, especially when moving or engaging in activities that put strain on the abdominal muscles.
In your case, the sudden onset of sharp, cramp-like pain in the left lower abdomen, particularly after a month post-surgery, could be attributed to several factors:
1. Postoperative Adhesions: After any abdominal surgery, including an appendectomy, scar tissue can form as part of the healing process. This scar tissue can sometimes lead to adhesions, which are bands of fibrous tissue that can cause organs to stick together or to the abdominal wall. These adhesions can lead to pain, especially during movement or certain positions.

2. Nerve Irritation: The surgical procedure may have inadvertently affected nearby nerves, leading to sensations of pain or discomfort. This can be particularly true if the pain is sharp and intermittent.

3. Muscle Strain: If you have resumed normal activities too quickly or engaged in movements that strain the abdominal muscles, this could lead to muscle pain. It’s essential to allow adequate time for healing and to gradually increase activity levels.

4. Infection or Inflammation: Although your blood tests and imaging did not indicate an active infection, it’s still possible to have localized inflammation or a low-grade infection that may not be easily detectable. This could cause pain in the area of the surgery.

5. Gastrointestinal Issues: Sometimes, gastrointestinal problems such as gas or constipation can mimic pain in the abdominal area, particularly after surgery when the digestive system may be recovering.

Given your symptoms, it is advisable to continue monitoring your condition. Here are some steps you can take to manage your pain and promote healing:
- Rest and Activity Modification: Avoid activities that exacerbate your pain, such as heavy lifting or vigorous exercise. Gradually reintroduce activities as tolerated.

- Pain Management: Continue using prescribed pain medications as needed. Over-the-counter pain relievers like ibuprofen or acetaminophen can also be effective for managing mild to moderate pain.

- Physical Therapy: If pain persists, consider consulting a physical therapist who can provide exercises to strengthen the abdominal muscles and improve flexibility, which may help alleviate pain.

- Follow-Up Care: Since your symptoms have persisted, it may be beneficial to follow up with your surgeon or primary care physician. They can perform a thorough evaluation to rule out any complications such as adhesions or other issues that may require intervention.

- Dietary Adjustments: If gastrointestinal discomfort is contributing to your pain, consider dietary changes to promote digestive health, such as increasing fiber intake and staying hydrated.

In conclusion, while some postoperative pain is expected, persistent or worsening pain should be evaluated further. It’s essential to communicate openly with your healthcare provider about your symptoms and any changes you experience. They can provide tailored advice and treatment options based on your specific situation.

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