Weakness in hand grip is mainly characterized by a lack of strength when holding an object in the hand. Weakness in hand grip can be caused by conditions such as nerve entrapment syndrome of the hand, pre-spinal cord syndrome, cervical spondylosis, and tennis elbow. Nerve entrapment syndrome is one of the bone-fiber canal and compartment compression syndromes. For the peripheral nerve line a certain part of the bone fibrous tube, a few for the fiber edge is compressed and chronic injury caused by inflammatory reaction, produce abnormal nerve function. Cold and damp diarrhea is also a common cause of weakness in hand grip, often accompanied by abdominal distension, less, fatigue and weakness, yellowish color, mostly due to spleen deficiency and diarrhea. Cold heavy performance ears, nose and limbs cold, mouth color white slippery, low oral temperature, arched back cold or even a drop in body temperature. Cold and damp diarrhea caused by the hand grip weakness of the examination: 1, enteroscopy: enteroscopy is through the anus will be inserted through the lumen of the enteroscope to the ileocecal part of the mucous membrane from the side of the observation of colonic lesions of the examination method. 2, stool routine: stool routine test can understand the digestive tract with or without bacterial, viral and parasitic infections, early detection of gastroenteritis, liver disease, but also as a diagnostic screening of digestive tract tumors. 3, fecal microscopy: fecal microscopy is the main content of routine clinical examination, used to check a variety of formed components, such as cells, parasites, crystals, bacteria, fungi.