Numbness in Right Thumb: Possible Causes and Solutions

Numbness on the inner side of the right thumb?

I'm sorry to bother you! Last night, after I wrote an article by hand, the inner side of my right thumb started to feel numb (the outer side is completely normal).
It felt a bit numb while I was writing, but I thought it was because I hadn't held a pen for a long time.
However, that sensation has persisted until now (almost a day later).
I had an injury to the second joint of my right thumb from playing basketball six months ago, and it hasn't healed yet.
Is there a connection between these two issues? Additionally, I have a habit of using the computer for about six hours a day.
Could poor posture be a factor? What could be the possible underlying conditions causing this numbness? Thank you, doctor, for your explanation! I appreciate it!

casey, 20~29 year old female. Ask Date: 2005/08/09

Dr. Ye Boshou reply Neurology

1.
Not related to playing sports.
2.
Numbness in the right thumb may be caused by compression; observe for one week, and if there is no improvement, consult a neurologist for evaluation.

Reply Date: 2005/08/09

More Info

Numbness in the right thumb can be concerning, especially when it persists for an extended period. Based on your description, there are several potential causes for the numbness you are experiencing, and it is essential to consider both your recent activities and any previous injuries.

1. Nerve Compression or Injury: Given that you mentioned a prior injury to the second joint of your right thumb, it is possible that there could be lingering effects from that injury. If the injury caused swelling or misalignment, it could lead to compression of the nerves that innervate the thumb. The median nerve, which runs through the wrist, is particularly susceptible to compression, leading to symptoms like numbness or tingling in the thumb and other fingers. This condition is often referred to as carpal tunnel syndrome, which can be exacerbated by repetitive hand movements, such as typing or writing.

2. Repetitive Strain Injury (RSI): Your daily routine of spending around six hours on the computer could contribute to repetitive strain injuries. Poor ergonomics, such as an improper wrist position while typing, can lead to inflammation and irritation of the tendons and nerves in the wrist and hand. This can manifest as numbness or tingling in the fingers, particularly the thumb.

3. Circulatory Issues: Although less common, circulatory problems can also lead to numbness in the extremities. If blood flow to the thumb is compromised, it could result in numbness. This is usually accompanied by other symptoms, such as coldness or color changes in the skin.

4. Underlying Medical Conditions: Certain medical conditions, such as diabetes, multiple sclerosis, or thyroid disorders, can lead to peripheral neuropathy, which may present as numbness in the fingers. If you have any other symptoms or a family history of such conditions, it may be worth discussing with your healthcare provider.

Recommendations:
- Rest and Ice: If you suspect that the numbness is related to overuse or strain, take breaks from activities that require repetitive hand movements. Applying ice to the affected area may help reduce any inflammation.

- Ergonomic Adjustments: Evaluate your workspace to ensure that your computer setup is ergonomic. Your wrists should be straight while typing, and your hands should float above the keyboard rather than resting on it.

- Stretching and Strengthening Exercises: Gentle stretching of the wrist and hand can help alleviate tension. Strengthening exercises for the hand and forearm may also be beneficial.

- Seek Medical Attention: If the numbness persists or worsens, it is crucial to consult a healthcare professional. They may recommend imaging studies, such as an MRI or nerve conduction studies, to assess for any underlying issues.

- Monitor Symptoms: Keep track of any additional symptoms that may arise, such as pain, weakness, or changes in sensation. This information can be helpful for your healthcare provider in determining the cause of your symptoms.

In conclusion, while the numbness in your right thumb could be related to your previous injury or your computer usage, it is essential to monitor your symptoms and seek professional advice if they persist. Early intervention can often lead to better outcomes and prevent further complications.

Similar Q&A

Understanding Finger Numbness: Could It Be Autonomic Nervous Dysfunction?

When pressing on the right index finger, there is a tingling sensation on the side close to the thumb. The thumb and middle finger also experience some sensation, but not as pronounced as the index finger. However, there is no sensation when not pressing. I have researched extens...

Dr. Cai Zongzhang reply Neurology
Hello: The finger symptoms are consistent with carpal tunnel syndrome. It is recommended to visit another neurology clinic to check for other potential conditions.

Understanding Thumb Numbness: Causes and When to Seek Help

Dear Dr. Hsieh: Today I suddenly felt numbness in my right thumb, and it doesn't have much sensation. Even when I tap it, I don't feel much. I also don't feel the cooling effect of a topical medication I applied. What could be the reason for this, and which special...

Dr. Xie Bojun reply Neurosurgery
Generally, numbness in a single finger is caused by prolonged local pressure leading to ischemia of the local nerves. Once the cause is identified, recovery typically occurs within about two weeks. Other potential causes of finger numbness, especially when multiple fingers are in...

Dealing with Numbness and Tingling in Your Hand: Carpal Tunnel Solutions

If you are experiencing numbness and tingling in your right hand's thumb, index finger, and middle finger due to compression of the median nerve, here are some steps you can take to address the issue: 1. Rest: Avoid activities that exacerbate the symptoms, especially re...

Dr. Chen Changmu reply Neurosurgery
Surgical intervention is recommended.

Understanding Right-Side Numbness: Causes and Concerns in Neurology

Hello, I initially experienced numbness in my right hand's ring and little fingers, as well as numbness on the right side of my face. Sometimes, I feel saliva pooling in my mouth. I consulted a neurologist who performed nerve conduction studies on my face and hands, which ca...

Dr. Jiang Junyi reply Neurology
Hello Ms. Ping, You mentioned that "the ring finger and little finger are numb," which is more indicative of ulnar nerve pathology. You also mentioned that "the MRI of the spine shows mild disc herniation." Often, because the MRI is performed while lying down...