1. Blood sample: Blood is one of the most common biological fluid samples. Blood samples can be obtained by collecting venous blood or fingertip blood for blood analysis, disease diagnosis and monitoring.
2. Urine sample: urine is formed by renal filtrate. Urine samples can be used for urine analysis, renal function evaluation, drug metabolism and poison detection.
3. Saliva sample: Saliva is the secretion in the mouth. Saliva samples can be used for genetic testing, disease screening, drug testing and oral health assessment.
4. Fecal sample: Fecal is solid waste discharged from the digestive system. Fecal samples can be used to diagnose digestive tract diseases, analyze intestinal flora and detect parasites.
5, tears sample: tears are the liquid secreted by the lacrimal gland of the eye. Tear samples can be used to detect eye infections, evaluate eye diseases and diagnose dry eye.
6. Tissue samples: Tissue samples are usually obtained by biopsy or surgery for pathological research, cancer diagnosis and histological analysis.