Introduction:

Subdermal contraceptives must be safe, with minimal side effects, reversible and long lasting, however, it has been observed that they cause adverse effects, mainly in the first months of its use.

Objectives:

To describe adverse effects, together with personal history in adolescents who underwent a subdermal contraceptive implant.

Methods:

A descriptive study was conducted in 120 adolescents who were placed as a subdermal implant as a contraceptive method. The variables adverse effects, age and obstetric history were studied.

Results:

36.6% of the patients had a history of induced abortions, and 5% were younger than 15 years. The most frequent adverse effects were weight gain (23.3% at 6 months and 21.6% per year), headache (18.3% at 6 months and 8.3% per year) and mastalgia (12.5% ​​at 6 months and 15% at year). In the pattern of bleeding, infrequent bleeding occurred (36% at 6 months and 43.3% per year) and amenorrhea (27.5% at 6 months and 35% per year).

Conclusions:

More than a third of the patients had previous abortions; The most frequent adverse effects were: weight gain, headache and mastalgia, both at 6 months and 1 year and in the pattern of bleeding, infrequent bleeding and amenorrhea.

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