It is theorized, and appears to be the case from the vantage of tens of thousands of chiropractors over the last 100 years, that subluxation can be causative and/or aggravate both musculoskeletal and visceral conditions. Low back pain, neck pain, and headache are the most common musculoskeletal complaints that appear to have direct relationship to the subluxation. Some visceral and non-musculoskeletal conditions that appear, in some cases, to be caused by, or associated with subluxation are; vertigo, otitis media, dysmennorhea, constipation, migraine, asthma, bedwetting, and infertility.