Marijuana has been used in treating pain and dealing with posttraumatic stress disorder (PTSD) in the U.S. However, a couple of recent studies claimed that there is still no substantial evidence to prove that medically it works positively for the conditions. There is still no conclusive proof of either actual damage or benefits it may have when treating medical conditions, especially pain.

The need for high-quality research on the effects of cannabis is high.

The series of studies were conducted at the Veterans Health Administration and published in the Annals of Internal Medicine.

According to one of the researchers Dr. Sachin Patel of Vanderbilt University Medical Center, the findings of the study suggests the need for high-quality research in the areas of PTSD and Chronic Pain. He further explained that if scientists and doctors studied marijuana for its medical benefits, it must be after getting no benefits from the use of all the known treatments possible.

The recent series of studies claim that 45 to 85 percent of US adults seek the use of the plant for pain management purposes. However, 27 previously published studies said that there had been no relevant information that can determine if the said drug can help most types of pain. In fact, only non-Scientific Evidence was used to prove that it can help relieve nerve pains.

In a separate analysis for PTSD, previous studies reveal a lack of information to determine if the plant has the ability to relieve its symptoms. One study that focused on US veterans with PTSD, however, suggested a small yet statistically significant decline in symptoms for those who started using the cannabis plant, compared with patients who have never used it or have already stopped using it, Healthline reported.

NSA reveals cannabis helps relieve chronic pain, chemotherapy effects, and multiple sclerosis.

While research into the medical benefits of marijuana remains controversial, one study claims to have found some positive conclusive results. Early this year, the National Academy of Sciences issued conclusive scientific proof that the plant has properties that can help treat chronic pain, ease nausea due to chemotherapy, and calm muscle spasms from multiple sclerosis.

Tasked by the US Department of Veterans Affairs, the authors of the new research were barred from discussing their results. Nevertheless, the agency issued a statement saying that no marijuana prescriptions will be made despite sprouting evidence that the plant may be significantly helpful, Fool reported. The plant is currently legal for medical use in 28 states in the US, including the District of Columbia despite its being an illegal item under the federal law.