Dizziness in supine position and normal in lateral position may be caused by benign paroxysmal positional vertigo or cervical spondylosis.
1. Benign paroxysmal positional vertigo: also known as otolithosis, manifested as vertigo when the head is in a certain position, such as supine dizziness in the side lying position is normal, easy to recur, can be accompanied by nystagmus, nausea, vomiting and other symptoms. The treatment is mainly based on manipulation and repositioning.
2. Cervical spondylosis: When the cervical vertebrae are deformed or protruded, the vertebral artery is compressed, resulting in insufficient blood supply to the vertebral basilar artery, which may cause cervical vertigo. When lying down, the protruding cervical intervertebral disc compresses the vertebral artery, affecting the blood supply of the vertebral artery and causing dizziness; when lying down on the side, the compression disappears and the dizziness symptoms get better. Cervical MRI or X-ray film can be perfected to clarify the diagnosis. In principle, the treatment of the primary disease is the main.
Dizziness in the supine position and normal in the lateral position may also be caused by other reasons, and it is recommended that the patient consult a doctor in a timely manner, improve the relevant examinations, and carry out targeted treatment after clarifying the cause.