1. Pain or discomfort: The indwelling needle may cause discomfort or pain, especially around the insertion site. The patient may decide to remove the indwelling needle by himself because of pain or discomfort.
2. Misunderstanding or incomprehension: Patients may not fully understand or misunderstand the purpose and function of indwelling needle. They may think that the indwelling needle has achieved the expected effect and no longer needs to be used, so they choose to remove it.
3. Anxiety or fear: Some patients may be afraid or anxious about medical equipment or indwelling needles. They may worry that the indwelling needle will cause infection or other complications, so they decide to pull it out by themselves.
4. Feeling bound: The indwelling needle may limit the patient's range of motion or cause discomfort. Patients may feel bound and want to move freely, so they choose to remove the indwelling needle.
No matter what causes the patient to pull out the indwelling needle privately, it may have a negative impact on his health and medical care. If patients feel uncomfortable or confused, they should communicate with medical staff in time and seek professional advice.