Sudden stabbing pain in the lower body may be due to pathological reasons, such as vaginal inflammation, genital herpes, folliculitis, neuropathic pain, urinary tract infection, bladder stones, etc. When there is pain in the lower body, it is necessary to find out the cause in time and treat the symptoms. 1. Vaginitis: When the hormone level in women’s body changes and the pH of the vagina changes, it may lead to the occurrence of bacterial, fungal and trichomonas infections, which may easily trigger vaginitis and cause sudden tingling in the lower body. 2. Genital herpes: when the herpes simplex virus violates the skin and mucous membranes of the genitourinary organs and the anus, it will lead to genital herpes, resulting in sudden stabbing pain in the lower body, and it will be easy to recur when the body’s resistance drops. 3. Folliculitis: when the body has bacterial infection or fungal infection and skin injury, it may trigger the occurrence of folliculitis, which will easily cause sudden stabbing pain in the lower body. 4. Neuropathic pain: damage to the central nervous system and peripheral nervous system may cause sudden stabbing pain in the lower body, which is a manifestation of neuropathic pain. 5. Urinary tract infection: pathogens grow and multiply in the urinary tract and cause inflammation of the mucous membranes and tissues of the urinary tract, of which bacterial infections are the most common, and urinary tract infections can also cause sudden stabbing pain in the lower body. 6. Bladder stones: when malnutrition or the existence of other types of disease, easy to form stones in the bladder, bladder stones can also cause sudden stabbing pain in the lower body. Patients need to go to the hospital in time to identify the cause of the disease, symptomatic treatment, to avoid delaying the disease.