Bumps on the Back of the Head: Causes and Concerns

Occipital protuberance hard lump?

Hello Doctor: Recently, my family mentioned that there is a hard lump between the back of my head and neck that does not hurt when pressed and does not move.
I am a bit worried that it might be some kind of tumor.
It seems that my family members do not have similar protruding symptoms, and I am unsure if I have had this since childhood, as I have no memory of it, but I am certain it has been there for over two years (I didn't pay much attention when I first discovered it).
I also thought about the symptoms; I wonder if this is related to the occasional dizziness I experience (especially when turning my head) and sometimes a feeling of pressure in my head.

Niming, 10~19 year old female. Ask Date: 2019/02/14

Dr. Li Yongheng reply Orthopedics

Hello, based on your symptoms, the hard lump between the back of your head and neck could possibly be a subcutaneous tumor, such as a common lipoma, which is usually not serious.
It is recommended that you monitor it for a while longer.

Reply Date: 2019/02/14

More Info

When it comes to bumps or hard lumps on the back of the head, particularly in the area between the occipital region and the neck, there are several potential causes to consider. It’s understandable to feel concerned about the possibility of a tumor or other serious condition, especially if the lump has been present for an extended period and is accompanied by symptoms like dizziness or a feeling of pressure in the head.

Common Causes of Bumps on the Back of the Head
1. Lipomas: These are benign tumors made of fatty tissue. They are usually soft, movable, and painless. If the lump you are feeling is firm and does not move, it might not be a lipoma, but it’s still worth considering.

2. Cysts: Epidermoid cysts or sebaceous cysts can develop under the skin and may feel like a hard lump. These are generally harmless and can be removed if they become bothersome.

3. Lymphadenopathy: Swollen lymph nodes can sometimes be felt as lumps in the neck or back of the head. This can occur due to infections or other inflammatory processes.

4. Bone Growths: Conditions such as osteomas (benign bone tumors) can develop on the skull. These are usually asymptomatic unless they press on surrounding structures.

5. Muscle Tension or Spasms: Sometimes, muscle tension in the neck and upper back can create a feeling of tightness or a lump sensation. This is often associated with stress, poor posture, or prolonged periods of sitting.

6. Trauma: If you have had any previous injuries to the head or neck, this could result in a bony prominence or a residual effect from the injury.

Symptoms to Monitor
While the lump itself may not be painful, the accompanying symptoms you mentioned, such as dizziness and a feeling of pressure in the head, warrant further investigation. Dizziness, especially when turning the head, can be related to several issues, including:
- Cervical Vertigo: This occurs when there is a problem in the cervical spine that affects balance.

- Vestibular Disorders: Conditions affecting the inner ear can lead to dizziness, particularly with head movements.

- Tension Headaches: These can cause a feeling of pressure in the head and may be related to muscle tension in the neck.

When to Seek Medical Attention
Given that the lump has been present for over two years and you are experiencing symptoms like dizziness, it is advisable to consult a healthcare professional. A thorough examination, including imaging studies such as an ultrasound or MRI, may be necessary to rule out any serious conditions, including tumors or other structural abnormalities.

Conclusion
In summary, while many bumps on the back of the head are benign, it is crucial to monitor any accompanying symptoms. The presence of dizziness, especially if it is recurrent or worsening, should not be ignored. A healthcare provider can offer a proper diagnosis and peace of mind through appropriate evaluation and management. Remember, it’s always better to err on the side of caution when it comes to health concerns.

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