Cupping therapy focuses on clearing the following four common categories of stagnation. Blood stagnation includes injuries, adhesions, and menstrual irregularities. Stagnant toxins refers to gastrointestinal disorders, rigid muscles, and breast inflammation. Qi stagnation includes muscular pain, dysmenorrhea, and pinched nerves. And fluid stagnation relating to conditions like lung congestion, asthmas, and lactation dysfunction.