Feeling sore after a massage is normal and happens for several physiological reasons similar to what you might experience after an intense workout.

Muscle Manipulation and Micro-tears

During a massage, especially deeper techniques like deep tissue or trigger point therapy, the muscles are manipulated, stretched, and pressured. This can cause tiny micro-tears or microscopic damage in muscle fibers as adhesions and knots are worked out, which triggers the body’s natural inflammatory response—leading to temporary soreness.

Lactic Acid Buildup and Inflammation

Firm massage or working muscles that aren’t used to being manipulated can cause a buildup of lactic acid and other metabolic byproducts. The sudden increase in blood circulation during a massage also contributes to inflammation, similar to what happens post-exercise, as the body flushes out these byproducts and repairs the tissues.

Additional Factors

• Hydration plays a role—dehydration can make soreness worse.

• People who are new to massage or get them infrequently may experience more noticeable discomfort because their muscles aren’t accustomed to the pressure.

• The type of massage and individual sensitivity also affect how sore you may feel afterward.

When Soreness Is a Concern

Mild soreness lasting 24-48 hours is typical, but severe or persistent pain, swelling, or sharp pains could indicate more serious muscle damage and warrant medical attention.

In summary, post-massage soreness is usually a sign that your muscles are adapting to being worked out and healing, much like delayed onset muscle soreness after exercise.