For the symptoms of leg cramps appearing in playing basketball, it is mainly seen in two reasons: one, lack of calcium; two, strain. For adolescents in the growth and development period, if there is obvious leg cramps when resting after playing basketball, it is mostly due to the lack of calcium in the development of the organism, and then there will be muscle spasms and cramps. If the symptoms of leg cramps appear in the process of playing basketball, it is mainly caused by strain injury, mainly due to the repeated and excessive pulling of the leg muscles in the process of playing basketball, causing muscle spasm and edema, which will cause the symptoms of leg cramps.