Short answer.... maybe
Long answer... maybe
Different techniques can have different impacts on the look of skin.. this photo was taken 3 days after an acupuncture treatment to help release tight pec muscles leading to other painful conditions. The insertion of the needle itself wasn’t painful, but when the electronic needle stimulator was used, there was some discomfort, although tolerable to the patient. Although very fine in diameter, occasionally the acupuncture needle hits small blood vessels causing superficial bruises that are often painless.
Likewise, we’ve all seen the ‘bruises’ left by intense cupping treatments, and can thank Michael Phelps for making it so mainstream. But ‘technically’, they aren’t really bruises, and more of a hickey due to the increased blood flow in the superficial skin and capillaries. When the cups are moved around, a more intense feeling of bruising occurs, sometimes even without marks, as the cup has worked with adhesions amongst the connective tissue of the skin and muscles.
Some patients report small, light bruises following a deep tissue massage, or over sensitive areas where mid-moderate pressure was used such as along the IT band. The feeling of being bruised, but without the visual marks is common following a massage treatment as well.
The long-short answer combined is that depending on the technique, pressure used, condition of the muscle, fascia and vasculature, it is not uncommon to have visual or feelings of bruising following a therapeutic manual treatment. This will typically subside within a few days, and the patient will be left feeling relief from the initial pain that brought them into the clinic for treatment.