Why do I have a lump in my neck?There are many causes of lumps in the neck, with most being enlarged lymph nodes. We have about 300 lymph nodes in the head and neck region. Most cannot be felt unless they are enlarged due to bacterial or viral infections, which is the case 95% of the time. Very rarely are neck lumps due to cancer, especially if you do not smoke or drink. Even so, the risk is still low.A lump in the neck may also be due to thyroid nodules or thyroid diseases [link to service page]. In Singapore, thyroid gland-related diseases are relatively common and about 1 in 20 patients will have a thyroid nodule that can be felt. Thyroid nodules are more common in women.All neck lumps in children and adults should be checked out by a doctor. Causes of neck lumpsIn summary, neck lumps may be caused by:Bacterial infection Cancer Thyroid diseaseAllergy reactions How to determine the cause of neck lumps?Neck lumps are commonly encountered by Dr Dennis Chua. He may carry out the following investigations to help evaluate your neck lump:Blood tests Fine needle biopsyPunch biopsy Lymph node biopsyX-ray, MRI scans, CT scans, PET scans Examination under anaesthesia Ask Us if you have any question?Feel free to drop us a message if you have concerns or symptoms pertaining to allergic rhinitis.