According to Massachusetts's medical marijuana legislation (called Act For The Humanitarian Medical Use of Marijuana), the debilitating medical conditions that can qualify residents for an MMJ card are the following:
Cancer,
Glaucoma,
Positive status for Human Immunodeficiency Virus (HIV) or Acquired Immune Deficiency Syndrome (AIDS),
Hepatitis C,
Amyotrophic Lateral Sclerosis (ALS),
Crohn’s disease,
Parkinson’s disease,
Multiple Sclerosis,
and any other debilitating medical conditions so long as it is determined in writing by a qualifying patient’s certifying physician.
The MA legislation defines a "debilitating" medical condition as any condition that causes "weakness, cachexia, wasting syndrome, intractable pain, or nausea, or impairs strength or ability, and progresses to such an extent that one or more of a patient’s major life activities is substantially limited.”
You may not have one of the medical conditions explicitly listed, but this does not mean you cannot still receive an MMJ ID card in Massachusetts. So long as your medical condition falls under this definition for “debilitating”, you can receive a recommendation from your evaluating physician.