The quadratus lumborum muscle is a commonly overlooked source of low back pain and is often responsible for “pseudo disc syndrome”. This muscle originates on the inferior border of the 12th rib and lumbar transverse processes. It inserts on the iliac crest and iliolumbar ligament. The q.l.’s main actions are extension and lateral flexion of the spine. It also acts as a stabilizer of the lumbar spine. Trigger points in this muscle refer pain into the sacroiliac joint and the lower buttock. Pain can also spread anteriorly along the crest of the ilium into the lower abdomen and groin and to the greater trochanter. 
Pain
Trigger points in the temporalis muscle
The temporalis muscle is located in the temple area of the skull. It originates on the temporal lines on the parietal bone of the skull, and inserts on the coronoid process of the mandible. It’s main action is to close the jaw. The posterior and middle fibres bilaterally retrude the mandible. Acting individually, this muscle will deviate the mandible to the same side. Trigger points in this muscle refer into the teeth causing hypersensitivity, and into and above the eye and temple, causing headaches.
Trigger points in the lateral pterygoid
The lateral pterygoid muscle plays an important role in prober jaw function. It originates on the greater wing of the sphenoid bone and the lateral pterygoid plate, and inserts on the condyloid process of the mandible. It’s action is to pull the head of the mandibular condyle out of the mandibular fossa while opening the jaw. When trigger points develop they refer pain into the temporal mandibular joint and maxillary sinus. This referral is commonly mistaken for TM arthritis. In addition to the referral pain, trigger points in this muscle can also effect proper movement of the jaw.
Trigger points in the serratus anterior
The serratus anterior muscle is located along the sides of the ribs. It originates on the outer surface of the upper 8-9ribs, and inserts on the medial border of the scapula. This muscle acts on the scapula in several different ways. First it rotates the scapula to turn the glenoid fossa upward. It also protracted and elevates the scapula. And lastly it helps to prevent wining. This muscle is often shortened from prolonged sitting and work on a computer. Active trigger points in this muscle refer pain locally around the trigger point with spillover down the inside of the arm. Pain can also radiate into the inferior angle of the scapula. 
Trigger points in the iliopsoas muscle
This muscle originates on the bodies and disks of T12-L5 and the inner ilium. It inserts on the lesser trochanter of the femur. The psoas flexes the hip when the spine is fixed. When the leg is fixed it extends the lumbar spine increasing lumbar lordosis. This Muscle is often chronically shortened due to inactivity and sitting posture. When trigger points are present they will refer pain primarily to the lower lumbar area and the sacrum as well as into the anterior thigh. Trigger points in the iliopsoas muscle can mimic appendicitis.
What is Fibromyalgia?
Fibromyalgia, although often misdiagnosed and misunderstood, is the second most common musculoskeletal disorder behind osteoarthritis. The condition affects nearly 12 million Americans and is ten times more common in women.
The diagnosis of fibromyalgia is made when a certain set of symptoms has been present for at least three months. The most common symptoms include wide-spread muscle and joint pain, achiness or soreness- especially in the neck, shoulders, back, and hips. Your muscles may constantly feel overworked and tired. Fibromyalgia patients often exhibit a set of predictable “tender points” spread throughout the body. Some patients have trouble sleeping and feel as though they are in a “brain fog” most of the day. This can lead to fatigue or mood changes, like anxiety and depression.
Stress is a known contributor to fibromyalgia, and patients should seek ways to de-stress, including yoga or meditation. Fibromyalgia patients should minimize their caffeine intake, as this is a known stimulant for nervousness, anxiety, and insomnia. Breathing exercises are sometimes helpful.
Although your sleep may be restless, you should try to establish a bedtime routine that gives your body the best chance for recovery. Try to avoid late night electronics, like the television or computer. Keep your bedroom dark, quiet, cool, and distraction-free. Be sure to take time for yourself each day for relaxation or to do something you enjoy. Combat “brain fog” by carrying a notebook or a phone to make notes for important things. Some patients report decreased muscle tightness by applying moist heat or a taking warm bath. The American Pain Society recommends conservative treatment, including chiropractic, along with moderate aerobic exercise.
Trigger points in the piriformis muscle
The piriformis muscle is a small muscle deep to glute max and lies over top of the sciatic nerve. It originates on the anterior sacrum, and inserts on the greater trochanter of the femur. It’s main action is to laterally rotate the femur. When trigger points developed in this muscle they will refer pain into the sacro-iliac region, across the posterior hip and down the leg. This muscle can also be a cause of sciatic nerve irritation if it gets tight, causing “sciatica” symptoms. 
Scapular Dyskinesis (Yes, its a thing).
Your shoulder is formed by three bones; the scapula (shoulder blade), the clavicle (collar bone), and the humerus (long arm bone.) These bones come together to form a shallow ball & socket that relies upon the surrounding muscles for support. All of your shoulder muscles must work in a coordinated fashion to have a healthy and stable joint. Disruption of the normal rhythm of your shoulder blade creates abnormal strain on your shoulder and rotator cuff called “Scapular dyskinesis”. This dysfunction crowds the area of your shoulder where your rotator cuff tendons live and may create a painful pinching of your tendons or bursa each time you raise your arm. Many shoulder problems, including sprains/strains, tendinitis, bursitis, or rotator cuff irritation, result from this often overlooked culprit.
Scapular dyskinesis most commonly originates from weakness or imbalance of the muscles that control your shoulder blade. Sometimes the problem is caused by other shoulder conditions like prior fractures, arthritis, or instability. Irritation of the nerves that control the shoulder muscles is the culprit in about 5% of cases.
Although scapular dyskinesis can cause a variety of shoulder problems, it may initially go unnoticed. Up to 75% of healthy college athletes show some form of abnormal shoulder blade movement. If the condition is left untreated, you may begin to notice pain near the top of your shoulder. Sometimes the discomfort can radiate toward your neck or into your arm. Patients will often complain of a tender spot on the front of their shoulder. Long-standing altered mechanics can lead to bigger problems, including rotator cuff injury, shoulder instability, and arthritis.
The good news is that we have recognized the underlying cause of your shoulder problems and have treatments to correct it. You will need to perform your exercises consistently. You should also be conscious of your posture and try to avoid sitting or standing in “slouched” positions, as this is known to aggravate your problem.
Trigger points in the gluteus minimus
The gluteus minimus is a small but important muscle that lies deep to the gluteus medius. It originates on the gluteal surface of the ilium, and attaches on the greater trochanter of the femur. It’s main actions are to abduct and medically rotate the hip. Trigger points in this muscle refer pain into the buttock and down the lateral and posterior leg, mimicking sciatica. This muscle should be the first to be examined if a straight leg test turns out negative. 
Trigger points in the gluteus medius muscle
The gluteus medius muscle plays an important role in hip and pelvic stability. It originates on the gluteal surface of the ilium, deep to the gluteus Maximus. It inserts on the greater trochanter of the femur. It’s main actions are to abduct the hip and to assist in internal rotation of the hip. It also maintains pelvic stability during walking and running. Trigger points in this muscle will refer pain into the sacrum, the iliac crest, and down the lateral hip and into the thigh. This muscle is often a cause of lower pack pain.
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