Conditions associated with Mouth ulcers

Condition	Number of Mouth ulcers reports
Nail fungal infection	1
Nail psoriasis	2
Nails - fungal infection	23
Nail tinea	6
Narcolepsy	35
Narcotic abuse	2
Nasal allergies	20
Nasal congestion	6
Nasal decongestion therapy	6
Nasal polyps	12
Nasopharyngeal cancer	10
Nasopharyngitis	43
Nausea	169
Nausea aggravated	169
Nausea and vomiting	173
Neck pain	9
Necrotising colitis	2
Necrotising retinitis	1
Necrotizing colitis	4
Neoplasm	21
Neoplasm malignant	112
Nephritis - lupus	19
Nephroblastoma	1
Nephrogenic anaemia	2
Nephrosis	8
Nephrotic syndrome	8
Nerve block	2
Nerve compression	2
Nerve damage - diabetic	4
Nerve injury	6
Nerve pain	56
Nervousness	7
Nervous system disorder	7
Neuralgia	56
Neuroblastoma	3
Neuroendocrine carcinoma	1
Neuroendocrine tumor	77
Neuroendocrine tumour	77
Neurofibroma	9
Neuropathic pain	1
Neuropathy	6
Neuropathy - autonomic	1
Neuropathy - peripheral	6
Neuropathy peripheral	53
Neuropathy - sciatic nerve	11
Neurosarcoidosis	5
Neurosis	3
Neutropenia	43
Neutropenic sepsis	110
Neutrophil count decreased	1