After evaluation, the clinician selects location, depth, and technique. Patients may feel pressure, an ache, a brief cramp-like sensation, or a local twitch response—an involuntary contraction that sometimes occurs when the needle reaches a responsive area.
A twitch is not required and does not prove the session worked. The more useful question is whether familiar pain, motion, or task tolerance changes and helps rehabilitation move forward. Dry needling and acupuncture both use thin needles but are distinct practices; here it is used in a musculoskeletal framework.
Temporary soreness, bruising, fatigue, or a short-lived increase in familiar symptoms can occur. Screening considers anatomy, pregnancy, infection, skin condition, sensation, needle tolerance, and bleeding risk. Serious complications are uncommon but possible, which is why training and appropriate technique matter.