It is usually normal for the muscles around surgical stitches to be very hard. However, it is not normal if it is accompanied by redness, swelling, heat and pain. After surgical stitches due to the surrounding tissue damage, bleeding and other reasons, subcutaneous tissue and muscle in the process of repair, granulation tissue, fibrous tissue proliferation to form scar tissue, which leads to the phenomenon of hardness of the surrounding muscle tissue. If the local skin color is normal, there is no redness, no swelling, no pressure and pain, the hardness of the local muscle tissue is normal, with the prolongation of the local circulation to improve the gradual softening of the scar can slowly return to normal. If the local skin is accompanied by redness, swelling, heat and pain is not normal, consider the subcutaneous tissue infection caused by the local redness, swelling and heat, skin temperature increases, pressure pain is obvious, need to consult a doctor in a timely manner, the need for antibiotic treatment, such as oral roxithromycin under the guidance of the doctor and other drugs, the specific use of medication should be carried out under the guidance of the doctor. Surgical stitches after the local muscle hardness, if accompanied by other uncomfortable symptoms, you need to timely hospital consultation, by the doctor according to the specific circumstances of targeted treatment.