diff --git a/include/mbedtls/sha256.h b/include/mbedtls/sha256.h
index aac48b2..ce14d85 100644
--- a/include/mbedtls/sha256.h
+++ b/include/mbedtls/sha256.h
@@ -115,7 +115,7 @@
  *                 and have a hash operation started.
  * \param input    The buffer holding the data. This must be a readable
  *                 buffer of length \p ilen Bytes.
- * \param ilen     The length of the input data \p input in Bytes.
+ * \param ilen     The length of the input data in Bytes.
  *
  * \return         \c 0 on success.
  * \return         A negative error code on failure.
@@ -184,7 +184,7 @@
  *                 initialized and have a hash operation started.
  * \param input    The buffer holding the data. This must be a readable
  *                 buffer of length \p ilen Bytes.
- * \param ilen     The length of the input data \p input in Bytes.
+ * \param ilen     The length of the input data in Bytes.
  */
 MBEDTLS_DEPRECATED void mbedtls_sha256_update( mbedtls_sha256_context *ctx,
                                                const unsigned char *input,
@@ -197,7 +197,7 @@
  * \deprecated     Superseded by mbedtls_sha256_finish_ret() in 2.7.0.
  *
  * \param ctx      The SHA-256 context. This must be initialized and
- *                 have a has hoperation started.
+ *                 have a hash operation started.
  * \param output   The SHA-224 or SHA-256 checksum result. This must be
  *                 a writable buffer of length \c 32 Bytes.
  */
@@ -234,7 +234,7 @@
  *
  * \param input    The buffer holding the data. This must be a readable
  *                 buffer of length \p ilen Bytes.
- * \param ilen     The length of the input data \p input in Bytes.
+ * \param ilen     The length of the input data in Bytes.
  * \param output   The SHA-224 or SHA-256 checksum result. This must
  *                 be a writable buffer of length \c 32 Bytes.
  * \param is224    Determines which function to use. This must be
@@ -266,10 +266,10 @@
  *
  * \param input    The buffer holding the data. This must be a readable
  *                 buffer of length \p ilen Bytes.
- * \param ilen     The length of the input data \p input in Bytes.
+ * \param ilen     The length of the input data in Bytes.
  * \param output   The SHA-224 or SHA-256 checksum result. This must be
  *                 a writable buffer of length \c 32 Bytes.
- * \param is224    Determines which function to use. This must be eithern
+ * \param is224    Determines which function to use. This must be either
  *                 \c 0 for SHA-256, or \c 1 for SHA-224.
  */
 MBEDTLS_DEPRECATED void mbedtls_sha256( const unsigned char *input,