A mass where the infant was forceps-clamped is considered a cephalohematoma, . Subcapsular tendon hematoma, labor tumor and other factors caused. Generally take observation and follow-up, surgical treatment and other methods of treatment. 1. Cephalohematoma: hematoma refers to the hematoma under the periosteum of the parietal bone in newborns, the range usually does not exceed the bone seam, usually disappears by itself within two weeks, long time does not disappear need ultrasound examination, if necessary, surgical removal. 2. Subcapitellar hematoma: limited swelling and bleeding of the scalp can be seen soon after birth, which can spread through the soft tissues, the scope of hematoma is more limited when the bleeding is less; the scope of swelling gradually expands when the bleeding is more, sometimes involving the whole scalp and even spreading to the forehead, periocular occiput or the back of the neck. If the hematoma is small, generally do not need special treatment, because after about two weeks, the hematoma will be gradually absorbed, if the hematoma under the capitellar tendon membrane is large, you must go to the hospital in time to take out the hematoma. 3. Tumor of birth: Generally, the tumor of birth can disappear in 2-3 days after the birth of the newborn, and no special treatment is needed. Infants are pinched by the forceps with lumps, there may be other reasons, it is recommended to consult a doctor in a timely manner to identify the causes and take targeted therapeutic measures.