There are 28 types of pulse, which can be roughly categorized into six types: floating pulse, sinking pulse, late pulse, counting pulse, imaginary pulse, and solid pulse. Floating Pulse includes Floating Pulse, Flood Pulse, Moist Pulse, Scattered Pulse, Stalk Pulse, and Ge Pulse. This type of pulse is characterized by a shallow floating pulse. The Floating Pulse is the main symptom of surface and deficiency. The Flooding Pulse is the main evidence of heatiness of the qi, and it can also refer to the prevalence of evil and the decline of positive; the Moistening Pulse can be the main evidence of deficiency or dampness, and it can also be seen in normal people. The Scattered Pulse represents that the Qi of the internal organs is about to be extinguished; the Stalk Pulse represents Yin deficiency and Blood deficiency. The Ge pulse represents blood deficiency. Sinking Pulse includes Sinking Pulse, Volatile Pulse, Firm Pulse and Weak Pulse. The Sinking Pulse represents the location of the disease in the interior; the Volatile Pulse can refer to pain and syncope; the Firm Pulse refers to cold condensation and hernia; and the Weak Pulse is a deficiency of qi and blood. In the category of Late Pulse, there are Late, Slow, Astringent and Knotted Pulse. The Late Pulse refers to Cold, the Slow Pulse refers to Dampness or weakness of the Spleen and Stomach; the Astringent Pulse refers to Qi Stagnation and Blood Stasis (blood stagnation due to the lack of Qi circulation); and the Knotted Pulse refers to Qi and Blood weakness or Blood stasis. The Counting Pulse category includes Counting, Promoting, Difficulty and Arterial. The Counting Pulse refers to heat; the Promoting Pulse generally refers to actual heat; the Sickness Pulse represents the imminent loss of vital energy; and the Arterial Pulse may refer to panic or pain. Deficiency pulses, including the Deficiency Pulse, Micro Pulse, Fine Pulse, Substitute Pulse, and Short Pulse, usually represent a deficiency of qi and blood. Solid Pulse includes Solid Pulse, Slippery Pulse, Tight Pulse, Long Pulse, Stringy Pulse, and Large Pulse. Usually, they represent real evidence of accumulation of stagnation, such as blood stasis, cold, phlegm (a pathological product of impaired metabolism of water and fluids), and persistent food. It can also be seen in normal people.